Home / 87,017.28-120,092.32-48,783.36

Finding the Fourth Proportional to 87,017.28, 120,092.32 and 48,783.36

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Solution

The fourth proportional to 87,017.28, 120,092.32 and 48,783.36 is: 67,325.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,017.28 : 120,092.32 = 48,783.36 : x
  2. Step 2: Convert to fraction form
    87,017.28/120,092.32 = 48,783.36/x
  3. Step 3: Cross multiply
    87,017.28x = 120,092.32 × 48,783.36
  4. Step 4: Simplify right side
    87,017.28x = 5,858,506,879.80
  5. Step 5: Solve for x
    x = 5,858,506,879.80/87,017.28
  6. Step 6: Final answer
    x = 67,325.79

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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.