Home / 87,883.28-121,278.32-47,596.12

Finding the Fourth Proportional to 87,883.28, 121,278.32 and 47,596.12

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Solution

The fourth proportional to 87,883.28, 121,278.32 and 47,596.12 is: 65,682.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,883.28 : 121,278.32 = 47,596.12 : x
  2. Step 2: Convert to fraction form
    87,883.28/121,278.32 = 47,596.12/x
  3. Step 3: Cross multiply
    87,883.28x = 121,278.32 × 47,596.12
  4. Step 4: Simplify right side
    87,883.28x = 5,772,377,472.12
  5. Step 5: Solve for x
    x = 5,772,377,472.12/87,883.28
  6. Step 6: Final answer
    x = 65,682.32

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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.