Home / 87,437.24-120,657.18-51,625.40

Finding the Fourth Proportional to 87,437.24, 120,657.18 and 51,625.40

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Solution

The fourth proportional to 87,437.24, 120,657.18 and 51,625.40 is: 71,239.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,437.24 : 120,657.18 = 51,625.40 : x
  2. Step 2: Convert to fraction form
    87,437.24/120,657.18 = 51,625.40/x
  3. Step 3: Cross multiply
    87,437.24x = 120,657.18 × 51,625.40
  4. Step 4: Simplify right side
    87,437.24x = 6,228,975,180.37
  5. Step 5: Solve for x
    x = 6,228,975,180.37/87,437.24
  6. Step 6: Final answer
    x = 71,239.38

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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.