Home / 90,333.47-135,451.33-71,733.17

Finding the Fourth Proportional to 90,333.47, 135,451.33 and 71,733.17

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Solution

The fourth proportional to 90,333.47, 135,451.33 and 71,733.17 is: 107,560.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,333.47 : 135,451.33 = 71,733.17 : x
  2. Step 2: Convert to fraction form
    90,333.47/135,451.33 = 71,733.17/x
  3. Step 3: Cross multiply
    90,333.47x = 135,451.33 × 71,733.17
  4. Step 4: Simplify right side
    90,333.47x = 9,716,352,425.03
  5. Step 5: Solve for x
    x = 9,716,352,425.03/90,333.47
  6. Step 6: Final answer
    x = 107,560.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.