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Finding the Fourth Proportional to 52,679.48, 72,700.36 and 28,805.90

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Solution

The fourth proportional to 52,679.48, 72,700.36 and 28,805.90 is: 39,753.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,679.48 : 72,700.36 = 28,805.90 : x
  2. Step 2: Convert to fraction form
    52,679.48/72,700.36 = 28,805.90/x
  3. Step 3: Cross multiply
    52,679.48x = 72,700.36 × 28,805.90
  4. Step 4: Simplify right side
    52,679.48x = 2,094,199,300.12
  5. Step 5: Solve for x
    x = 2,094,199,300.12/52,679.48
  6. Step 6: Final answer
    x = 39,753.61

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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.