Home / 87,200.08-120,332-48,440.40

Finding the Fourth Proportional to 87,200.08, 120,332 and 48,440.40

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Solution

The fourth proportional to 87,200.08, 120,332 and 48,440.40 is: 66,845.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,200.08 : 120,332 = 48,440.40 : x
  2. Step 2: Convert to fraction form
    87,200.08/120,332 = 48,440.40/x
  3. Step 3: Cross multiply
    87,200.08x = 120,332 × 48,440.40
  4. Step 4: Simplify right side
    87,200.08x = 5,828,930,212.80
  5. Step 5: Solve for x
    x = 5,828,930,212.80/87,200.08
  6. Step 6: Final answer
    x = 66,845.47

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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.