Home / 84,311.40-126,467.10-54,373.80

Finding the Fourth Proportional to 84,311.40, 126,467.10 and 54,373.80

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Solution

The fourth proportional to 84,311.40, 126,467.10 and 54,373.80 is: 81,560.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,311.40 : 126,467.10 = 54,373.80 : x
  2. Step 2: Convert to fraction form
    84,311.40/126,467.10 = 54,373.80/x
  3. Step 3: Cross multiply
    84,311.40x = 126,467.10 × 54,373.80
  4. Step 4: Simplify right side
    84,311.40x = 6,876,496,801.98
  5. Step 5: Solve for x
    x = 6,876,496,801.98/84,311.40
  6. Step 6: Final answer
    x = 81,560.70

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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.