Home / 91,860.28-137,790.42-29,530.78

Finding the Fourth Proportional to 91,860.28, 137,790.42 and 29,530.78

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Solution

The fourth proportional to 91,860.28, 137,790.42 and 29,530.78 is: 44,296.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,860.28 : 137,790.42 = 29,530.78 : x
  2. Step 2: Convert to fraction form
    91,860.28/137,790.42 = 29,530.78/x
  3. Step 3: Cross multiply
    91,860.28x = 137,790.42 × 29,530.78
  4. Step 4: Simplify right side
    91,860.28x = 4,069,058,862.11
  5. Step 5: Solve for x
    x = 4,069,058,862.11/91,860.28
  6. Step 6: Final answer
    x = 44,296.17

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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.