Home / 87,120.34-120,223.74-48,876.70

Finding the Fourth Proportional to 87,120.34, 120,223.74 and 48,876.70

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Solution

The fourth proportional to 87,120.34, 120,223.74 and 48,876.70 is: 67,448.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,120.34 : 120,223.74 = 48,876.70 : x
  2. Step 2: Convert to fraction form
    87,120.34/120,223.74 = 48,876.70/x
  3. Step 3: Cross multiply
    87,120.34x = 120,223.74 × 48,876.70
  4. Step 4: Simplify right side
    87,120.34x = 5,876,139,672.86
  5. Step 5: Solve for x
    x = 5,876,139,672.86/87,120.34
  6. Step 6: Final answer
    x = 67,448.54

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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.