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Finding the Fourth Proportional to 89,262.56, 123,070.23 and 65,347.71

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Solution

The fourth proportional to 89,262.56, 123,070.23 and 65,347.71 is: 90,097.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,262.56 : 123,070.23 = 65,347.71 : x
  2. Step 2: Convert to fraction form
    89,262.56/123,070.23 = 65,347.71/x
  3. Step 3: Cross multiply
    89,262.56x = 123,070.23 × 65,347.71
  4. Step 4: Simplify right side
    89,262.56x = 8,042,357,699.67
  5. Step 5: Solve for x
    x = 8,042,357,699.67/89,262.56
  6. Step 6: Final answer
    x = 90,097.78

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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.