Home / 91,581.19-137,370.43-25,021.20

Finding the Fourth Proportional to 91,581.19, 137,370.43 and 25,021.20

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Solution

The fourth proportional to 91,581.19, 137,370.43 and 25,021.20 is: 37,531.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,581.19 : 137,370.43 = 25,021.20 : x
  2. Step 2: Convert to fraction form
    91,581.19/137,370.43 = 25,021.20/x
  3. Step 3: Cross multiply
    91,581.19x = 137,370.43 × 25,021.20
  4. Step 4: Simplify right side
    91,581.19x = 3,437,173,003.12
  5. Step 5: Solve for x
    x = 3,437,173,003.12/91,581.19
  6. Step 6: Final answer
    x = 37,531.43

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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.