Home / 87,349.47-130,991.97-31,174.56

Finding the Fourth Proportional to 87,349.47, 130,991.97 and 31,174.56

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Solution

The fourth proportional to 87,349.47, 130,991.97 and 31,174.56 is: 46,750.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,349.47 : 130,991.97 = 31,174.56 : x
  2. Step 2: Convert to fraction form
    87,349.47/130,991.97 = 31,174.56/x
  3. Step 3: Cross multiply
    87,349.47x = 130,991.97 × 31,174.56
  4. Step 4: Simplify right side
    87,349.47x = 4,083,617,028.28
  5. Step 5: Solve for x
    x = 4,083,617,028.28/87,349.47
  6. Step 6: Final answer
    x = 46,750.34

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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.