Home / 80,535.65-120,750.16-38,422.23

Finding the Fourth Proportional to 80,535.65, 120,750.16 and 38,422.23

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Solution

The fourth proportional to 80,535.65, 120,750.16 and 38,422.23 is: 57,607.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,535.65 : 120,750.16 = 38,422.23 : x
  2. Step 2: Convert to fraction form
    80,535.65/120,750.16 = 38,422.23/x
  3. Step 3: Cross multiply
    80,535.65x = 120,750.16 × 38,422.23
  4. Step 4: Simplify right side
    80,535.65x = 4,639,490,227.95
  5. Step 5: Solve for x
    x = 4,639,490,227.95/80,535.65
  6. Step 6: Final answer
    x = 57,607.91

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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.