Home / 91,726.35-126,528.66-57,680.97

Finding the Fourth Proportional to 91,726.35, 126,528.66 and 57,680.97

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Solution

The fourth proportional to 91,726.35, 126,528.66 and 57,680.97 is: 79,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,726.35 : 126,528.66 = 57,680.97 : x
  2. Step 2: Convert to fraction form
    91,726.35/126,528.66 = 57,680.97/x
  3. Step 3: Cross multiply
    91,726.35x = 126,528.66 × 57,680.97
  4. Step 4: Simplify right side
    91,726.35x = 7,298,295,841.60
  5. Step 5: Solve for x
    x = 7,298,295,841.60/91,726.35
  6. Step 6: Final answer
    x = 79,565.97

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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.