Home / 84,622.68-126,901.20-45,158.27

Finding the Fourth Proportional to 84,622.68, 126,901.20 and 45,158.27

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Solution

The fourth proportional to 84,622.68, 126,901.20 and 45,158.27 is: 67,719.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,622.68 : 126,901.20 = 45,158.27 : x
  2. Step 2: Convert to fraction form
    84,622.68/126,901.20 = 45,158.27/x
  3. Step 3: Cross multiply
    84,622.68x = 126,901.20 × 45,158.27
  4. Step 4: Simplify right side
    84,622.68x = 5,730,638,018.42
  5. Step 5: Solve for x
    x = 5,730,638,018.42/84,622.68
  6. Step 6: Final answer
    x = 67,719.88

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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.