Home / 91,781.52-126,730.16-59,531.44

Finding the Fourth Proportional to 91,781.52, 126,730.16 and 59,531.44

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Solution

The fourth proportional to 91,781.52, 126,730.16 and 59,531.44 is: 82,199.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,781.52 : 126,730.16 = 59,531.44 : x
  2. Step 2: Convert to fraction form
    91,781.52/126,730.16 = 59,531.44/x
  3. Step 3: Cross multiply
    91,781.52x = 126,730.16 × 59,531.44
  4. Step 4: Simplify right side
    91,781.52x = 7,544,428,916.23
  5. Step 5: Solve for x
    x = 7,544,428,916.23/91,781.52
  6. Step 6: Final answer
    x = 82,199.87

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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.