Home / 83,170.20-114,775.02-45,443.64

Finding the Fourth Proportional to 83,170.20, 114,775.02 and 45,443.64

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Solution

The fourth proportional to 83,170.20, 114,775.02 and 45,443.64 is: 62,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,170.20 : 114,775.02 = 45,443.64 : x
  2. Step 2: Convert to fraction form
    83,170.20/114,775.02 = 45,443.64/x
  3. Step 3: Cross multiply
    83,170.20x = 114,775.02 × 45,443.64
  4. Step 4: Simplify right side
    83,170.20x = 5,215,794,689.87
  5. Step 5: Solve for x
    x = 5,215,794,689.87/83,170.20
  6. Step 6: Final answer
    x = 62,712.30

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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.