Home / 87,157.16-120,266.96-48,908.80

Finding the Fourth Proportional to 87,157.16, 120,266.96 and 48,908.80

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Solution

The fourth proportional to 87,157.16, 120,266.96 and 48,908.80 is: 67,488.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,157.16 : 120,266.96 = 48,908.80 : x
  2. Step 2: Convert to fraction form
    87,157.16/120,266.96 = 48,908.80/x
  3. Step 3: Cross multiply
    87,157.16x = 120,266.96 × 48,908.80
  4. Step 4: Simplify right side
    87,157.16x = 5,882,112,693.25
  5. Step 5: Solve for x
    x = 5,882,112,693.25/87,157.16
  6. Step 6: Final answer
    x = 67,488.58

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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.