Home / 87,359.65-120,554.98-49,119.23

Finding the Fourth Proportional to 87,359.65, 120,554.98 and 49,119.23

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Solution

The fourth proportional to 87,359.65, 120,554.98 and 49,119.23 is: 67,783.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,359.65 : 120,554.98 = 49,119.23 : x
  2. Step 2: Convert to fraction form
    87,359.65/120,554.98 = 49,119.23/x
  3. Step 3: Cross multiply
    87,359.65x = 120,554.98 × 49,119.23
  4. Step 4: Simplify right side
    87,359.65x = 5,921,567,968.85
  5. Step 5: Solve for x
    x = 5,921,567,968.85/87,359.65
  6. Step 6: Final answer
    x = 67,783.79

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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.