Home / 81,097.91-121,560.75-47,833.64

Finding the Fourth Proportional to 81,097.91, 121,560.75 and 47,833.64

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Solution

The fourth proportional to 81,097.91, 121,560.75 and 47,833.64 is: 71,699.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,097.91 : 121,560.75 = 47,833.64 : x
  2. Step 2: Convert to fraction form
    81,097.91/121,560.75 = 47,833.64/x
  3. Step 3: Cross multiply
    81,097.91x = 121,560.75 × 47,833.64
  4. Step 4: Simplify right side
    81,097.91x = 5,814,693,001.68
  5. Step 5: Solve for x
    x = 5,814,693,001.68/81,097.91
  6. Step 6: Final answer
    x = 71,699.67

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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.