Home / 87,107.24-130,660.38-31,703.24

Finding the Fourth Proportional to 87,107.24, 130,660.38 and 31,703.24

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Solution

The fourth proportional to 87,107.24, 130,660.38 and 31,703.24 is: 47,554.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,107.24 : 130,660.38 = 31,703.24 : x
  2. Step 2: Convert to fraction form
    87,107.24/130,660.38 = 31,703.24/x
  3. Step 3: Cross multiply
    87,107.24x = 130,660.38 × 31,703.24
  4. Step 4: Simplify right side
    87,107.24x = 4,142,357,385.63
  5. Step 5: Solve for x
    x = 4,142,357,385.63/87,107.24
  6. Step 6: Final answer
    x = 47,554.69

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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.