Home / 87,385.24-130,746.57-51,865.57

Finding the Fourth Proportional to 87,385.24, 130,746.57 and 51,865.57

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Solution

The fourth proportional to 87,385.24, 130,746.57 and 51,865.57 is: 77,601.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,385.24 : 130,746.57 = 51,865.57 : x
  2. Step 2: Convert to fraction form
    87,385.24/130,746.57 = 51,865.57/x
  3. Step 3: Cross multiply
    87,385.24x = 130,746.57 × 51,865.57
  4. Step 4: Simplify right side
    87,385.24x = 6,781,245,378.59
  5. Step 5: Solve for x
    x = 6,781,245,378.59/87,385.24
  6. Step 6: Final answer
    x = 77,601.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.