Home / 87,036.36-130,556.40-27,871.86

Finding the Fourth Proportional to 87,036.36, 130,556.40 and 27,871.86

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Solution

The fourth proportional to 87,036.36, 130,556.40 and 27,871.86 is: 41,808.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,036.36 : 130,556.40 = 27,871.86 : x
  2. Step 2: Convert to fraction form
    87,036.36/130,556.40 = 27,871.86/x
  3. Step 3: Cross multiply
    87,036.36x = 130,556.40 × 27,871.86
  4. Step 4: Simplify right side
    87,036.36x = 3,638,849,702.90
  5. Step 5: Solve for x
    x = 3,638,849,702.90/87,036.36
  6. Step 6: Final answer
    x = 41,808.39

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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.