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Finding the Fourth Proportional to 64,995.32, 89,699.82 and 39,496.08

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Solution

The fourth proportional to 64,995.32, 89,699.82 and 39,496.08 is: 54,508.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,995.32 : 89,699.82 = 39,496.08 : x
  2. Step 2: Convert to fraction form
    64,995.32/89,699.82 = 39,496.08/x
  3. Step 3: Cross multiply
    64,995.32x = 89,699.82 × 39,496.08
  4. Step 4: Simplify right side
    64,995.32x = 3,542,791,266.71
  5. Step 5: Solve for x
    x = 3,542,791,266.71/64,995.32
  6. Step 6: Final answer
    x = 54,508.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.