Home / 87,813.90-121,180.50-49,574.88

Finding the Fourth Proportional to 87,813.90, 121,180.50 and 49,574.88

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Solution

The fourth proportional to 87,813.90, 121,180.50 and 49,574.88 is: 68,411.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,813.90 : 121,180.50 = 49,574.88 : x
  2. Step 2: Convert to fraction form
    87,813.90/121,180.50 = 49,574.88/x
  3. Step 3: Cross multiply
    87,813.90x = 121,180.50 × 49,574.88
  4. Step 4: Simplify right side
    87,813.90x = 6,007,508,745.84
  5. Step 5: Solve for x
    x = 6,007,508,745.84/87,813.90
  6. Step 6: Final answer
    x = 68,411.82

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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.