Home / 87,189.24-130,738.37-31,021.16

Finding the Fourth Proportional to 87,189.24, 130,738.37 and 31,021.16

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Solution

The fourth proportional to 87,189.24, 130,738.37 and 31,021.16 is: 46,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,189.24 : 130,738.37 = 31,021.16 : x
  2. Step 2: Convert to fraction form
    87,189.24/130,738.37 = 31,021.16/x
  3. Step 3: Cross multiply
    87,189.24x = 130,738.37 × 31,021.16
  4. Step 4: Simplify right side
    87,189.24x = 4,055,655,085.11
  5. Step 5: Solve for x
    x = 4,055,655,085.11/87,189.24
  6. Step 6: Final answer
    x = 46,515.55

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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.