Home / 83,697.06-125,545.80-20,517.46

Finding the Fourth Proportional to 83,697.06, 125,545.80 and 20,517.46

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Solution

The fourth proportional to 83,697.06, 125,545.80 and 20,517.46 is: 30,776.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,697.06 : 125,545.80 = 20,517.46 : x
  2. Step 2: Convert to fraction form
    83,697.06/125,545.80 = 20,517.46/x
  3. Step 3: Cross multiply
    83,697.06x = 125,545.80 × 20,517.46
  4. Step 4: Simplify right side
    83,697.06x = 2,575,880,929.67
  5. Step 5: Solve for x
    x = 2,575,880,929.67/83,697.06
  6. Step 6: Final answer
    x = 30,776.24

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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.