Home / 115,037.97-172,411.56-51,790.74

Finding the Fourth Proportional to 115,037.97, 172,411.56 and 51,790.74

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Solution

The fourth proportional to 115,037.97, 172,411.56 and 51,790.74 is: 77,620.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,037.97 : 172,411.56 = 51,790.74 : x
  2. Step 2: Convert to fraction form
    115,037.97/172,411.56 = 51,790.74/x
  3. Step 3: Cross multiply
    115,037.97x = 172,411.56 × 51,790.74
  4. Step 4: Simplify right side
    115,037.97x = 8,929,322,276.95
  5. Step 5: Solve for x
    x = 8,929,322,276.95/115,037.97
  6. Step 6: Final answer
    x = 77,620.65

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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.