Home / 87,071.50-120,170.01-51,264.82

Finding the Fourth Proportional to 87,071.50, 120,170.01 and 51,264.82

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Solution

The fourth proportional to 87,071.50, 120,170.01 and 51,264.82 is: 70,752.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,071.50 : 120,170.01 = 51,264.82 : x
  2. Step 2: Convert to fraction form
    87,071.50/120,170.01 = 51,264.82/x
  3. Step 3: Cross multiply
    87,071.50x = 120,170.01 × 51,264.82
  4. Step 4: Simplify right side
    87,071.50x = 6,160,493,932.05
  5. Step 5: Solve for x
    x = 6,160,493,932.05/87,071.50
  6. Step 6: Final answer
    x = 70,752.13

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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.