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Finding the Fourth Proportional to 62,892, 86,720.10 and 48,519.12

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Solution

The fourth proportional to 62,892, 86,720.10 and 48,519.12 is: 66,901.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,892 : 86,720.10 = 48,519.12 : x
  2. Step 2: Convert to fraction form
    62,892/86,720.10 = 48,519.12/x
  3. Step 3: Cross multiply
    62,892x = 86,720.10 × 48,519.12
  4. Step 4: Simplify right side
    62,892x = 4,207,582,938.31
  5. Step 5: Solve for x
    x = 4,207,582,938.31/62,892
  6. Step 6: Final answer
    x = 66,901.72

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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.