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Finding the Fourth Proportional to 59,929.40, 82,655.84 and 38,421.20

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Solution

The fourth proportional to 59,929.40, 82,655.84 and 38,421.20 is: 52,991.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,929.40 : 82,655.84 = 38,421.20 : x
  2. Step 2: Convert to fraction form
    59,929.40/82,655.84 = 38,421.20/x
  3. Step 3: Cross multiply
    59,929.40x = 82,655.84 × 38,421.20
  4. Step 4: Simplify right side
    59,929.40x = 3,175,736,862.50
  5. Step 5: Solve for x
    x = 3,175,736,862.50/59,929.40
  6. Step 6: Final answer
    x = 52,991.30

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