Home / 81,575.14-112,624.11-54,389.47

Finding the Fourth Proportional to 81,575.14, 112,624.11 and 54,389.47

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Solution

The fourth proportional to 81,575.14, 112,624.11 and 54,389.47 is: 75,091.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,575.14 : 112,624.11 = 54,389.47 : x
  2. Step 2: Convert to fraction form
    81,575.14/112,624.11 = 54,389.47/x
  3. Step 3: Cross multiply
    81,575.14x = 112,624.11 × 54,389.47
  4. Step 4: Simplify right side
    81,575.14x = 6,125,565,652.12
  5. Step 5: Solve for x
    x = 6,125,565,652.12/81,575.14
  6. Step 6: Final answer
    x = 75,091.08

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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.