Home / 87,767.04-121,118.34-47,480.76

Finding the Fourth Proportional to 87,767.04, 121,118.34 and 47,480.76

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Solution

The fourth proportional to 87,767.04, 121,118.34 and 47,480.76 is: 65,523.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,767.04 : 121,118.34 = 47,480.76 : x
  2. Step 2: Convert to fraction form
    87,767.04/121,118.34 = 47,480.76/x
  3. Step 3: Cross multiply
    87,767.04x = 121,118.34 × 47,480.76
  4. Step 4: Simplify right side
    87,767.04x = 5,750,790,403.47
  5. Step 5: Solve for x
    x = 5,750,790,403.47/87,767.04
  6. Step 6: Final answer
    x = 65,523.35

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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.