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Finding the Fourth Proportional to 72,417.42, 108,656.13 and 39,098.32

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Solution

The fourth proportional to 72,417.42, 108,656.13 and 39,098.32 is: 58,663.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,417.42 : 108,656.13 = 39,098.32 : x
  2. Step 2: Convert to fraction form
    72,417.42/108,656.13 = 39,098.32/x
  3. Step 3: Cross multiply
    72,417.42x = 108,656.13 × 39,098.32
  4. Step 4: Simplify right side
    72,417.42x = 4,248,272,321.28
  5. Step 5: Solve for x
    x = 4,248,272,321.28/72,417.42
  6. Step 6: Final answer
    x = 58,663.68

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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.