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Finding the Fourth Proportional to 52,248.60, 72,102.78 and 28,375.20

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Solution

The fourth proportional to 52,248.60, 72,102.78 and 28,375.20 is: 39,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,248.60 : 72,102.78 = 28,375.20 : x
  2. Step 2: Convert to fraction form
    52,248.60/72,102.78 = 28,375.20/x
  3. Step 3: Cross multiply
    52,248.60x = 72,102.78 × 28,375.20
  4. Step 4: Simplify right side
    52,248.60x = 2,045,930,803.06
  5. Step 5: Solve for x
    x = 2,045,930,803.06/52,248.60
  6. Step 6: Final answer
    x = 39,157.62

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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.