Home / 87,187.16-120,316.56-48,947.60

Finding the Fourth Proportional to 87,187.16, 120,316.56 and 48,947.60

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Solution

The fourth proportional to 87,187.16, 120,316.56 and 48,947.60 is: 67,546.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,187.16 : 120,316.56 = 48,947.60 : x
  2. Step 2: Convert to fraction form
    87,187.16/120,316.56 = 48,947.60/x
  3. Step 3: Cross multiply
    87,187.16x = 120,316.56 × 48,947.60
  4. Step 4: Simplify right side
    87,187.16x = 5,889,206,852.26
  5. Step 5: Solve for x
    x = 5,889,206,852.26/87,187.16
  6. Step 6: Final answer
    x = 67,546.72

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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.