Home / 87,290.26-120,474.25-51,484.21

Finding the Fourth Proportional to 87,290.26, 120,474.25 and 51,484.21

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Solution

The fourth proportional to 87,290.26, 120,474.25 and 51,484.21 is: 71,056.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,290.26 : 120,474.25 = 51,484.21 : x
  2. Step 2: Convert to fraction form
    87,290.26/120,474.25 = 51,484.21/x
  3. Step 3: Cross multiply
    87,290.26x = 120,474.25 × 51,484.21
  4. Step 4: Simplify right side
    87,290.26x = 6,202,521,156.70
  5. Step 5: Solve for x
    x = 6,202,521,156.70/87,290.26
  6. Step 6: Final answer
    x = 71,056.28

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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.