Home / 87,767.16-121,118.18-47,480.79

Finding the Fourth Proportional to 87,767.16, 121,118.18 and 47,480.79

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Solution

The fourth proportional to 87,767.16, 121,118.18 and 47,480.79 is: 65,523.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,767.16 : 121,118.18 = 47,480.79 : x
  2. Step 2: Convert to fraction form
    87,767.16/121,118.18 = 47,480.79/x
  3. Step 3: Cross multiply
    87,767.16x = 121,118.18 × 47,480.79
  4. Step 4: Simplify right side
    87,767.16x = 5,750,786,869.76
  5. Step 5: Solve for x
    x = 5,750,786,869.76/87,767.16
  6. Step 6: Final answer
    x = 65,523.22

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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.