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Finding the Fourth Proportional to 52,103.74, 71,902.98 and 28,230.40

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Solution

The fourth proportional to 52,103.74, 71,902.98 and 28,230.40 is: 38,957.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,103.74 : 71,902.98 = 28,230.40 : x
  2. Step 2: Convert to fraction form
    52,103.74/71,902.98 = 28,230.40/x
  3. Step 3: Cross multiply
    52,103.74x = 71,902.98 × 28,230.40
  4. Step 4: Simplify right side
    52,103.74x = 2,029,849,886.59
  5. Step 5: Solve for x
    x = 2,029,849,886.59/52,103.74
  6. Step 6: Final answer
    x = 38,957.85

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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.