Home / 87,923.83-121,340.90-49,670.17

Finding the Fourth Proportional to 87,923.83, 121,340.90 and 49,670.17

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Solution

The fourth proportional to 87,923.83, 121,340.90 and 49,670.17 is: 68,548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,923.83 : 121,340.90 = 49,670.17 : x
  2. Step 2: Convert to fraction form
    87,923.83/121,340.90 = 49,670.17/x
  3. Step 3: Cross multiply
    87,923.83x = 121,340.90 × 49,670.17
  4. Step 4: Simplify right side
    87,923.83x = 6,027,023,130.95
  5. Step 5: Solve for x
    x = 6,027,023,130.95/87,923.83
  6. Step 6: Final answer
    x = 68,548.23

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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.