Home / 87,966.47-121,409.99-50,240.72

Finding the Fourth Proportional to 87,966.47, 121,409.99 and 50,240.72

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Solution

The fourth proportional to 87,966.47, 121,409.99 and 50,240.72 is: 69,341.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,966.47 : 121,409.99 = 50,240.72 : x
  2. Step 2: Convert to fraction form
    87,966.47/121,409.99 = 50,240.72/x
  3. Step 3: Cross multiply
    87,966.47x = 121,409.99 × 50,240.72
  4. Step 4: Simplify right side
    87,966.47x = 6,099,725,553.52
  5. Step 5: Solve for x
    x = 6,099,725,553.52/87,966.47
  6. Step 6: Final answer
    x = 69,341.48

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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.