Home / 87,839.64-121,169.52-51,994.71

Finding the Fourth Proportional to 87,839.64, 121,169.52 and 51,994.71

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Solution

The fourth proportional to 87,839.64, 121,169.52 and 51,994.71 is: 71,723.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,839.64 : 121,169.52 = 51,994.71 : x
  2. Step 2: Convert to fraction form
    87,839.64/121,169.52 = 51,994.71/x
  3. Step 3: Cross multiply
    87,839.64x = 121,169.52 × 51,994.71
  4. Step 4: Simplify right side
    87,839.64x = 6,300,174,053.24
  5. Step 5: Solve for x
    x = 6,300,174,053.24/87,839.64
  6. Step 6: Final answer
    x = 71,723.59

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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.