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Finding the Fourth Proportional to 64,314.88, 96,459.52 and 19,930.88

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Solution

The fourth proportional to 64,314.88, 96,459.52 and 19,930.88 is: 29,892.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,314.88 : 96,459.52 = 19,930.88 : x
  2. Step 2: Convert to fraction form
    64,314.88/96,459.52 = 19,930.88/x
  3. Step 3: Cross multiply
    64,314.88x = 96,459.52 × 19,930.88
  4. Step 4: Simplify right side
    64,314.88x = 1,922,523,117.98
  5. Step 5: Solve for x
    x = 1,922,523,117.98/64,314.88
  6. Step 6: Final answer
    x = 29,892.35

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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.