Home / 83,278.40-124,975.20-59,921.60

Finding the Fourth Proportional to 83,278.40, 124,975.20 and 59,921.60

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Solution

The fourth proportional to 83,278.40, 124,975.20 and 59,921.60 is: 89,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,278.40 : 124,975.20 = 59,921.60 : x
  2. Step 2: Convert to fraction form
    83,278.40/124,975.20 = 59,921.60/x
  3. Step 3: Cross multiply
    83,278.40x = 124,975.20 × 59,921.60
  4. Step 4: Simplify right side
    83,278.40x = 7,488,713,944.32
  5. Step 5: Solve for x
    x = 7,488,713,944.32/83,278.40
  6. Step 6: Final answer
    x = 89,923.85

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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.