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Finding the Fourth Proportional to 72,337.60, 108,506.42 and 30,194.70

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Solution

The fourth proportional to 72,337.60, 108,506.42 and 30,194.70 is: 45,292.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,337.60 : 108,506.42 = 30,194.70 : x
  2. Step 2: Convert to fraction form
    72,337.60/108,506.42 = 30,194.70/x
  3. Step 3: Cross multiply
    72,337.60x = 108,506.42 × 30,194.70
  4. Step 4: Simplify right side
    72,337.60x = 3,276,318,463.47
  5. Step 5: Solve for x
    x = 3,276,318,463.47/72,337.60
  6. Step 6: Final answer
    x = 45,292.05

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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.