Home / 83,436.45-125,153.52-20,257.05

Finding the Fourth Proportional to 83,436.45, 125,153.52 and 20,257.05

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Solution

The fourth proportional to 83,436.45, 125,153.52 and 20,257.05 is: 30,385.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,436.45 : 125,153.52 = 20,257.05 : x
  2. Step 2: Convert to fraction form
    83,436.45/125,153.52 = 20,257.05/x
  3. Step 3: Cross multiply
    83,436.45x = 125,153.52 × 20,257.05
  4. Step 4: Simplify right side
    83,436.45x = 2,535,241,112.32
  5. Step 5: Solve for x
    x = 2,535,241,112.32/83,436.45
  6. Step 6: Final answer
    x = 30,385.29

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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.