Home / 81,537.59-122,290.92-25,378.40

Finding the Fourth Proportional to 81,537.59, 122,290.92 and 25,378.40

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Solution

The fourth proportional to 81,537.59, 122,290.92 and 25,378.40 is: 38,062.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,537.59 : 122,290.92 = 25,378.40 : x
  2. Step 2: Convert to fraction form
    81,537.59/122,290.92 = 25,378.40/x
  3. Step 3: Cross multiply
    81,537.59x = 122,290.92 × 25,378.40
  4. Step 4: Simplify right side
    81,537.59x = 3,103,547,272.67
  5. Step 5: Solve for x
    x = 3,103,547,272.67/81,537.59
  6. Step 6: Final answer
    x = 38,062.78

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1.5x scale

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.