Home / 87,751.12-131,630.28-73,063.60

Finding the Fourth Proportional to 87,751.12, 131,630.28 and 73,063.60

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Solution

The fourth proportional to 87,751.12, 131,630.28 and 73,063.60 is: 109,598.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,751.12 : 131,630.28 = 73,063.60 : x
  2. Step 2: Convert to fraction form
    87,751.12/131,630.28 = 73,063.60/x
  3. Step 3: Cross multiply
    87,751.12x = 131,630.28 × 73,063.60
  4. Step 4: Simplify right side
    87,751.12x = 9,617,382,125.81
  5. Step 5: Solve for x
    x = 9,617,382,125.81/87,751.12
  6. Step 6: Final answer
    x = 109,598.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.