Home / 87,112.90-120,208.50-48,867.10

Finding the Fourth Proportional to 87,112.90, 120,208.50 and 48,867.10

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Solution

The fourth proportional to 87,112.90, 120,208.50 and 48,867.10 is: 67,432.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,112.90 : 120,208.50 = 48,867.10 : x
  2. Step 2: Convert to fraction form
    87,112.90/120,208.50 = 48,867.10/x
  3. Step 3: Cross multiply
    87,112.90x = 120,208.50 × 48,867.10
  4. Step 4: Simplify right side
    87,112.90x = 5,874,240,790.35
  5. Step 5: Solve for x
    x = 5,874,240,790.35/87,112.90
  6. Step 6: Final answer
    x = 67,432.50

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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.