Home / 87,225.30-120,356.52-51,422.24

Finding the Fourth Proportional to 87,225.30, 120,356.52 and 51,422.24

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Solution

The fourth proportional to 87,225.30, 120,356.52 and 51,422.24 is: 70,954.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,225.30 : 120,356.52 = 51,422.24 : x
  2. Step 2: Convert to fraction form
    87,225.30/120,356.52 = 51,422.24/x
  3. Step 3: Cross multiply
    87,225.30x = 120,356.52 × 51,422.24
  4. Step 4: Simplify right side
    87,225.30x = 6,189,001,985.56
  5. Step 5: Solve for x
    x = 6,189,001,985.56/87,225.30
  6. Step 6: Final answer
    x = 70,954.20

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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.