Home / 83,939.75-125,909.63-28,535.75

Finding the Fourth Proportional to 83,939.75, 125,909.63 and 28,535.75

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Solution

The fourth proportional to 83,939.75, 125,909.63 and 28,535.75 is: 42,803.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,939.75 : 125,909.63 = 28,535.75 : x
  2. Step 2: Convert to fraction form
    83,939.75/125,909.63 = 28,535.75/x
  3. Step 3: Cross multiply
    83,939.75x = 125,909.63 × 28,535.75
  4. Step 4: Simplify right side
    83,939.75x = 3,592,925,724.27
  5. Step 5: Solve for x
    x = 3,592,925,724.27/83,939.75
  6. Step 6: Final answer
    x = 42,803.63

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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.