Home / 87,289.11-130,991.09-47,873.91

Finding the Fourth Proportional to 87,289.11, 130,991.09 and 47,873.91

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Solution

The fourth proportional to 87,289.11, 130,991.09 and 47,873.91 is: 71,842.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,289.11 : 130,991.09 = 47,873.91 : x
  2. Step 2: Convert to fraction form
    87,289.11/130,991.09 = 47,873.91/x
  3. Step 3: Cross multiply
    87,289.11x = 130,991.09 × 47,873.91
  4. Step 4: Simplify right side
    87,289.11x = 6,271,055,653.46
  5. Step 5: Solve for x
    x = 6,271,055,653.46/87,289.11
  6. Step 6: Final answer
    x = 71,842.36

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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.