Home / 87,735.08-131,520.38-42,746.60

Finding the Fourth Proportional to 87,735.08, 131,520.38 and 42,746.60

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Solution

The fourth proportional to 87,735.08, 131,520.38 and 42,746.60 is: 64,079.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,735.08 : 131,520.38 = 42,746.60 : x
  2. Step 2: Convert to fraction form
    87,735.08/131,520.38 = 42,746.60/x
  3. Step 3: Cross multiply
    87,735.08x = 131,520.38 × 42,746.60
  4. Step 4: Simplify right side
    87,735.08x = 5,622,049,075.71
  5. Step 5: Solve for x
    x = 5,622,049,075.71/87,735.08
  6. Step 6: Final answer
    x = 64,079.83

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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.