Home / 91,141.12-136,726.26-38,565.64

Finding the Fourth Proportional to 91,141.12, 136,726.26 and 38,565.64

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Solution

The fourth proportional to 91,141.12, 136,726.26 and 38,565.64 is: 57,854.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,141.12 : 136,726.26 = 38,565.64 : x
  2. Step 2: Convert to fraction form
    91,141.12/136,726.26 = 38,565.64/x
  3. Step 3: Cross multiply
    91,141.12x = 136,726.26 × 38,565.64
  4. Step 4: Simplify right side
    91,141.12x = 5,272,935,721.71
  5. Step 5: Solve for x
    x = 5,272,935,721.71/91,141.12
  6. Step 6: Final answer
    x = 57,854.63

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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.