Home / 87,036.64-130,514.64-27,859.12

Finding the Fourth Proportional to 87,036.64, 130,514.64 and 27,859.12

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Solution

The fourth proportional to 87,036.64, 130,514.64 and 27,859.12 is: 41,775.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,036.64 : 130,514.64 = 27,859.12 : x
  2. Step 2: Convert to fraction form
    87,036.64/130,514.64 = 27,859.12/x
  3. Step 3: Cross multiply
    87,036.64x = 130,514.64 × 27,859.12
  4. Step 4: Simplify right side
    87,036.64x = 3,636,023,017.52
  5. Step 5: Solve for x
    x = 3,636,023,017.52/87,036.64
  6. Step 6: Final answer
    x = 41,775.77

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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.