Home / 87,628.97-120,927.82-47,342.61

Finding the Fourth Proportional to 87,628.97, 120,927.82 and 47,342.61

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Solution

The fourth proportional to 87,628.97, 120,927.82 and 47,342.61 is: 65,332.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,628.97 : 120,927.82 = 47,342.61 : x
  2. Step 2: Convert to fraction form
    87,628.97/120,927.82 = 47,342.61/x
  3. Step 3: Cross multiply
    87,628.97x = 120,927.82 × 47,342.61
  4. Step 4: Simplify right side
    87,628.97x = 5,725,038,590.82
  5. Step 5: Solve for x
    x = 5,725,038,590.82/87,628.97
  6. Step 6: Final answer
    x = 65,332.71

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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.