Home / 86,001.72-128,987.46-22,822.44

Finding the Fourth Proportional to 86,001.72, 128,987.46 and 22,822.44

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Solution

The fourth proportional to 86,001.72, 128,987.46 and 22,822.44 is: 34,229.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,001.72 : 128,987.46 = 22,822.44 : x
  2. Step 2: Convert to fraction form
    86,001.72/128,987.46 = 22,822.44/x
  3. Step 3: Cross multiply
    86,001.72x = 128,987.46 × 22,822.44
  4. Step 4: Simplify right side
    86,001.72x = 2,943,808,566.60
  5. Step 5: Solve for x
    x = 2,943,808,566.60/86,001.72
  6. Step 6: Final answer
    x = 34,229.65

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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.