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Finding the Fourth Proportional to 81,277.80, 112,158.85 and 45,460.89

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Solution

The fourth proportional to 81,277.80, 112,158.85 and 45,460.89 is: 62,733.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,277.80 : 112,158.85 = 45,460.89 : x
  2. Step 2: Convert to fraction form
    81,277.80/112,158.85 = 45,460.89/x
  3. Step 3: Cross multiply
    81,277.80x = 112,158.85 × 45,460.89
  4. Step 4: Simplify right side
    81,277.80x = 5,098,841,142.38
  5. Step 5: Solve for x
    x = 5,098,841,142.38/81,277.80
  6. Step 6: Final answer
    x = 62,733.50

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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.