Home / 87,315.64-120,510.14-51,514.52

Finding the Fourth Proportional to 87,315.64, 120,510.14 and 51,514.52

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Solution

The fourth proportional to 87,315.64, 120,510.14 and 51,514.52 is: 71,098.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,315.64 : 120,510.14 = 51,514.52 : x
  2. Step 2: Convert to fraction form
    87,315.64/120,510.14 = 51,514.52/x
  3. Step 3: Cross multiply
    87,315.64x = 120,510.14 × 51,514.52
  4. Step 4: Simplify right side
    87,315.64x = 6,208,022,017.23
  5. Step 5: Solve for x
    x = 6,208,022,017.23/87,315.64
  6. Step 6: Final answer
    x = 71,098.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.