Home / 83,761.57-125,642.36-28,353.25

Finding the Fourth Proportional to 83,761.57, 125,642.36 and 28,353.25

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Solution

The fourth proportional to 83,761.57, 125,642.36 and 28,353.25 is: 42,529.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,761.57 : 125,642.36 = 28,353.25 : x
  2. Step 2: Convert to fraction form
    83,761.57/125,642.36 = 28,353.25/x
  3. Step 3: Cross multiply
    83,761.57x = 125,642.36 × 28,353.25
  4. Step 4: Simplify right side
    83,761.57x = 3,562,369,243.67
  5. Step 5: Solve for x
    x = 3,562,369,243.67/83,761.57
  6. Step 6: Final answer
    x = 42,529.88

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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.