Home / 91,110.92-136,672.14-38,513.48

Finding the Fourth Proportional to 91,110.92, 136,672.14 and 38,513.48

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Solution

The fourth proportional to 91,110.92, 136,672.14 and 38,513.48 is: 57,772.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,110.92 : 136,672.14 = 38,513.48 : x
  2. Step 2: Convert to fraction form
    91,110.92/136,672.14 = 38,513.48/x
  3. Step 3: Cross multiply
    91,110.92x = 136,672.14 × 38,513.48
  4. Step 4: Simplify right side
    91,110.92x = 5,263,719,730.45
  5. Step 5: Solve for x
    x = 5,263,719,730.45/91,110.92
  6. Step 6: Final answer
    x = 57,772.65

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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.