Home / 83,427.95-125,140.88-20,248.61

Finding the Fourth Proportional to 83,427.95, 125,140.88 and 20,248.61

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Solution

The fourth proportional to 83,427.95, 125,140.88 and 20,248.61 is: 30,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,427.95 : 125,140.88 = 20,248.61 : x
  2. Step 2: Convert to fraction form
    83,427.95/125,140.88 = 20,248.61/x
  3. Step 3: Cross multiply
    83,427.95x = 125,140.88 × 20,248.61
  4. Step 4: Simplify right side
    83,427.95x = 2,533,928,299.09
  5. Step 5: Solve for x
    x = 2,533,928,299.09/83,427.95
  6. Step 6: Final answer
    x = 30,372.65

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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.