Home / 87,012.48-130,576.96-31,608.48

Finding the Fourth Proportional to 87,012.48, 130,576.96 and 31,608.48

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Solution

The fourth proportional to 87,012.48, 130,576.96 and 31,608.48 is: 47,433.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,012.48 : 130,576.96 = 31,608.48 : x
  2. Step 2: Convert to fraction form
    87,012.48/130,576.96 = 31,608.48/x
  3. Step 3: Cross multiply
    87,012.48x = 130,576.96 × 31,608.48
  4. Step 4: Simplify right side
    87,012.48x = 4,127,339,228.62
  5. Step 5: Solve for x
    x = 4,127,339,228.62/87,012.48
  6. Step 6: Final answer
    x = 47,433.88

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1.5x scale

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.