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Finding the Fourth Proportional to 52,609.60, 72,602.82 and 28,737.40

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Solution

The fourth proportional to 52,609.60, 72,602.82 and 28,737.40 is: 39,658.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,609.60 : 72,602.82 = 28,737.40 : x
  2. Step 2: Convert to fraction form
    52,609.60/72,602.82 = 28,737.40/x
  3. Step 3: Cross multiply
    52,609.60x = 72,602.82 × 28,737.40
  4. Step 4: Simplify right side
    52,609.60x = 2,086,416,279.47
  5. Step 5: Solve for x
    x = 2,086,416,279.47/52,609.60
  6. Step 6: Final answer
    x = 39,658.47

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1.5x scale

Why These Related Problems?

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