Home / 87,217.36-120,360.36-53,211.76

Finding the Fourth Proportional to 87,217.36, 120,360.36 and 53,211.76

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Solution

The fourth proportional to 87,217.36, 120,360.36 and 53,211.76 is: 73,432.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,217.36 : 120,360.36 = 53,211.76 : x
  2. Step 2: Convert to fraction form
    87,217.36/120,360.36 = 53,211.76/x
  3. Step 3: Cross multiply
    87,217.36x = 120,360.36 × 53,211.76
  4. Step 4: Simplify right side
    87,217.36x = 6,404,586,589.83
  5. Step 5: Solve for x
    x = 6,404,586,589.83/87,217.36
  6. Step 6: Final answer
    x = 73,432.47

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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.