Home / 91,428.39-137,159.64-41,511.96

Finding the Fourth Proportional to 91,428.39, 137,159.64 and 41,511.96

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Solution

The fourth proportional to 91,428.39, 137,159.64 and 41,511.96 is: 62,275.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,428.39 : 137,159.64 = 41,511.96 : x
  2. Step 2: Convert to fraction form
    91,428.39/137,159.64 = 41,511.96/x
  3. Step 3: Cross multiply
    91,428.39x = 137,159.64 × 41,511.96
  4. Step 4: Simplify right side
    91,428.39x = 5,693,765,489.29
  5. Step 5: Solve for x
    x = 5,693,765,489.29/91,428.39
  6. Step 6: Final answer
    x = 62,275.68

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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.