Home / 87,947.30-121,360.05-49,710.11

Finding the Fourth Proportional to 87,947.30, 121,360.05 and 49,710.11

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Solution

The fourth proportional to 87,947.30, 121,360.05 and 49,710.11 is: 68,595.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,947.30 : 121,360.05 = 49,710.11 : x
  2. Step 2: Convert to fraction form
    87,947.30/121,360.05 = 49,710.11/x
  3. Step 3: Cross multiply
    87,947.30x = 121,360.05 × 49,710.11
  4. Step 4: Simplify right side
    87,947.30x = 6,032,821,435.11
  5. Step 5: Solve for x
    x = 6,032,821,435.11/87,947.30
  6. Step 6: Final answer
    x = 68,595.87

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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.