Home / 84,591.36-126,854.24-45,126.95

Finding the Fourth Proportional to 84,591.36, 126,854.24 and 45,126.95

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Solution

The fourth proportional to 84,591.36, 126,854.24 and 45,126.95 is: 67,672.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,591.36 : 126,854.24 = 45,126.95 : x
  2. Step 2: Convert to fraction form
    84,591.36/126,854.24 = 45,126.95/x
  3. Step 3: Cross multiply
    84,591.36x = 126,854.24 × 45,126.95
  4. Step 4: Simplify right side
    84,591.36x = 5,724,544,085.86
  5. Step 5: Solve for x
    x = 5,724,544,085.86/84,591.36
  6. Step 6: Final answer
    x = 67,672.92

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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.