Home / 87,047.57-120,081.44-56,850.57

Finding the Fourth Proportional to 87,047.57, 120,081.44 and 56,850.57

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Solution

The fourth proportional to 87,047.57, 120,081.44 and 56,850.57 is: 78,424.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,047.57 : 120,081.44 = 56,850.57 : x
  2. Step 2: Convert to fraction form
    87,047.57/120,081.44 = 56,850.57/x
  3. Step 3: Cross multiply
    87,047.57x = 120,081.44 × 56,850.57
  4. Step 4: Simplify right side
    87,047.57x = 6,826,698,452.55
  5. Step 5: Solve for x
    x = 6,826,698,452.55/87,047.57
  6. Step 6: Final answer
    x = 78,424.91

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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.