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Finding the Fourth Proportional to 89,275.59, 133,708.25 and 51,742.82

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Solution

The fourth proportional to 89,275.59, 133,708.25 and 51,742.82 is: 77,495.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,275.59 : 133,708.25 = 51,742.82 : x
  2. Step 2: Convert to fraction form
    89,275.59/133,708.25 = 51,742.82/x
  3. Step 3: Cross multiply
    89,275.59x = 133,708.25 × 51,742.82
  4. Step 4: Simplify right side
    89,275.59x = 6,918,442,375.89
  5. Step 5: Solve for x
    x = 6,918,442,375.89/89,275.59
  6. Step 6: Final answer
    x = 77,495.34

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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.