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Finding the Fourth Proportional to 64,325.32, 96,487.98 and 19,951

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Solution

The fourth proportional to 64,325.32, 96,487.98 and 19,951 is: 29,926.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,325.32 : 96,487.98 = 19,951 : x
  2. Step 2: Convert to fraction form
    64,325.32/96,487.98 = 19,951/x
  3. Step 3: Cross multiply
    64,325.32x = 96,487.98 × 19,951
  4. Step 4: Simplify right side
    64,325.32x = 1,925,031,688.98
  5. Step 5: Solve for x
    x = 1,925,031,688.98/64,325.32
  6. Step 6: Final answer
    x = 29,926.50

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.