Home / 83,734.20-115,555.28-45,493.76

Finding the Fourth Proportional to 83,734.20, 115,555.28 and 45,493.76

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Solution

The fourth proportional to 83,734.20, 115,555.28 and 45,493.76 is: 62,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,734.20 : 115,555.28 = 45,493.76 : x
  2. Step 2: Convert to fraction form
    83,734.20/115,555.28 = 45,493.76/x
  3. Step 3: Cross multiply
    83,734.20x = 115,555.28 × 45,493.76
  4. Step 4: Simplify right side
    83,734.20x = 5,257,044,175.05
  5. Step 5: Solve for x
    x = 5,257,044,175.05/83,734.20
  6. Step 6: Final answer
    x = 62,782.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.