Home / 87,490.94-120,741.42-49,263.63

Finding the Fourth Proportional to 87,490.94, 120,741.42 and 49,263.63

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Solution

The fourth proportional to 87,490.94, 120,741.42 and 49,263.63 is: 67,986.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,490.94 : 120,741.42 = 49,263.63 : x
  2. Step 2: Convert to fraction form
    87,490.94/120,741.42 = 49,263.63/x
  3. Step 3: Cross multiply
    87,490.94x = 120,741.42 × 49,263.63
  4. Step 4: Simplify right side
    87,490.94x = 5,948,160,640.55
  5. Step 5: Solve for x
    x = 5,948,160,640.55/87,490.94
  6. Step 6: Final answer
    x = 67,986.02

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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.