Home / 83,748.10-125,622.15-31,146.70

Finding the Fourth Proportional to 83,748.10, 125,622.15 and 31,146.70

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Solution

The fourth proportional to 83,748.10, 125,622.15 and 31,146.70 is: 46,720.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,748.10 : 125,622.15 = 31,146.70 : x
  2. Step 2: Convert to fraction form
    83,748.10/125,622.15 = 31,146.70/x
  3. Step 3: Cross multiply
    83,748.10x = 125,622.15 × 31,146.70
  4. Step 4: Simplify right side
    83,748.10x = 3,912,715,419.41
  5. Step 5: Solve for x
    x = 3,912,715,419.41/83,748.10
  6. Step 6: Final answer
    x = 46,720.05

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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.