Home / 87,809.97-121,178.52-50,086.65

Finding the Fourth Proportional to 87,809.97, 121,178.52 and 50,086.65

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Solution

The fourth proportional to 87,809.97, 121,178.52 and 50,086.65 is: 69,120.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,809.97 : 121,178.52 = 50,086.65 : x
  2. Step 2: Convert to fraction form
    87,809.97/121,178.52 = 50,086.65/x
  3. Step 3: Cross multiply
    87,809.97x = 121,178.52 × 50,086.65
  4. Step 4: Simplify right side
    87,809.97x = 6,069,426,118.76
  5. Step 5: Solve for x
    x = 6,069,426,118.76/87,809.97
  6. Step 6: Final answer
    x = 69,120.01

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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.