Home / 87,108.24-130,661.88-31,704.24

Finding the Fourth Proportional to 87,108.24, 130,661.88 and 31,704.24

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Solution

The fourth proportional to 87,108.24, 130,661.88 and 31,704.24 is: 47,556.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,108.24 : 130,661.88 = 31,704.24 : x
  2. Step 2: Convert to fraction form
    87,108.24/130,661.88 = 31,704.24/x
  3. Step 3: Cross multiply
    87,108.24x = 130,661.88 × 31,704.24
  4. Step 4: Simplify right side
    87,108.24x = 4,142,535,602.37
  5. Step 5: Solve for x
    x = 4,142,535,602.37/87,108.24
  6. Step 6: Final answer
    x = 47,556.19

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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.