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Finding the Fourth Proportional to 74,329.20, 111,493.80 and 60,332.40

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Solution

The fourth proportional to 74,329.20, 111,493.80 and 60,332.40 is: 90,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,329.20 : 111,493.80 = 60,332.40 : x
  2. Step 2: Convert to fraction form
    74,329.20/111,493.80 = 60,332.40/x
  3. Step 3: Cross multiply
    74,329.20x = 111,493.80 × 60,332.40
  4. Step 4: Simplify right side
    74,329.20x = 6,726,688,539.12
  5. Step 5: Solve for x
    x = 6,726,688,539.12/74,329.20
  6. Step 6: Final answer
    x = 90,498.60

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