Home / 87,926.16-121,337.92-47,640.94

Finding the Fourth Proportional to 87,926.16, 121,337.92 and 47,640.94

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Solution

The fourth proportional to 87,926.16, 121,337.92 and 47,640.94 is: 65,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,926.16 : 121,337.92 = 47,640.94 : x
  2. Step 2: Convert to fraction form
    87,926.16/121,337.92 = 47,640.94/x
  3. Step 3: Cross multiply
    87,926.16x = 121,337.92 × 47,640.94
  4. Step 4: Simplify right side
    87,926.16x = 5,780,652,566.44
  5. Step 5: Solve for x
    x = 5,780,652,566.44/87,926.16
  6. Step 6: Final answer
    x = 65,744.40

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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.