Home / 81,291.04-112,181.50-45,481.02

Finding the Fourth Proportional to 81,291.04, 112,181.50 and 45,481.02

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Solution

The fourth proportional to 81,291.04, 112,181.50 and 45,481.02 is: 62,763.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,291.04 : 112,181.50 = 45,481.02 : x
  2. Step 2: Convert to fraction form
    81,291.04/112,181.50 = 45,481.02/x
  3. Step 3: Cross multiply
    81,291.04x = 112,181.50 × 45,481.02
  4. Step 4: Simplify right side
    81,291.04x = 5,102,129,045.13
  5. Step 5: Solve for x
    x = 5,102,129,045.13/81,291.04
  6. Step 6: Final answer
    x = 62,763.73

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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.