Home / 83,436.74-125,155.16-20,256.96

Finding the Fourth Proportional to 83,436.74, 125,155.16 and 20,256.96

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Solution

The fourth proportional to 83,436.74, 125,155.16 and 20,256.96 is: 30,385.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,436.74 : 125,155.16 = 20,256.96 : x
  2. Step 2: Convert to fraction form
    83,436.74/125,155.16 = 20,256.96/x
  3. Step 3: Cross multiply
    83,436.74x = 125,155.16 × 20,256.96
  4. Step 4: Simplify right side
    83,436.74x = 2,535,263,069.91
  5. Step 5: Solve for x
    x = 2,535,263,069.91/83,436.74
  6. Step 6: Final answer
    x = 30,385.45

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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.