Home / 87,032.88-130,448.64-39,576.96

Finding the Fourth Proportional to 87,032.88, 130,448.64 and 39,576.96

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Solution

The fourth proportional to 87,032.88, 130,448.64 and 39,576.96 is: 59,319.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,032.88 : 130,448.64 = 39,576.96 : x
  2. Step 2: Convert to fraction form
    87,032.88/130,448.64 = 39,576.96/x
  3. Step 3: Cross multiply
    87,032.88x = 130,448.64 × 39,576.96
  4. Step 4: Simplify right side
    87,032.88x = 5,162,760,607.33
  5. Step 5: Solve for x
    x = 5,162,760,607.33/87,032.88
  6. Step 6: Final answer
    x = 59,319.66

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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.