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Finding the Fourth Proportional to 72,202.35, 108,356.73 and 34,251.74

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Solution

The fourth proportional to 72,202.35, 108,356.73 and 34,251.74 is: 51,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,202.35 : 108,356.73 = 34,251.74 : x
  2. Step 2: Convert to fraction form
    72,202.35/108,356.73 = 34,251.74/x
  3. Step 3: Cross multiply
    72,202.35x = 108,356.73 × 34,251.74
  4. Step 4: Simplify right side
    72,202.35x = 3,711,406,215.40
  5. Step 5: Solve for x
    x = 3,711,406,215.40/72,202.35
  6. Step 6: Final answer
    x = 51,402.85

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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.