Home / 87,014.28-120,088.16-48,780.32

Finding the Fourth Proportional to 87,014.28, 120,088.16 and 48,780.32

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Solution

The fourth proportional to 87,014.28, 120,088.16 and 48,780.32 is: 67,321.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,014.28 : 120,088.16 = 48,780.32 : x
  2. Step 2: Convert to fraction form
    87,014.28/120,088.16 = 48,780.32/x
  3. Step 3: Cross multiply
    87,014.28x = 120,088.16 × 48,780.32
  4. Step 4: Simplify right side
    87,014.28x = 5,857,938,873.01
  5. Step 5: Solve for x
    x = 5,857,938,873.01/87,014.28
  6. Step 6: Final answer
    x = 67,321.58

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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.