Home / 91,726.90-137,599.77-31,755.28

Finding the Fourth Proportional to 91,726.90, 137,599.77 and 31,755.28

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Solution

The fourth proportional to 91,726.90, 137,599.77 and 31,755.28 is: 47,636.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,726.90 : 137,599.77 = 31,755.28 : x
  2. Step 2: Convert to fraction form
    91,726.90/137,599.77 = 31,755.28/x
  3. Step 3: Cross multiply
    91,726.90x = 137,599.77 × 31,755.28
  4. Step 4: Simplify right side
    91,726.90x = 4,369,519,224.29
  5. Step 5: Solve for x
    x = 4,369,519,224.29/91,726.90
  6. Step 6: Final answer
    x = 47,636.18

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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.