Home / 80,239.61-110,721.72-44,420.65

Finding the Fourth Proportional to 80,239.61, 110,721.72 and 44,420.65

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Solution

The fourth proportional to 80,239.61, 110,721.72 and 44,420.65 is: 61,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,239.61 : 110,721.72 = 44,420.65 : x
  2. Step 2: Convert to fraction form
    80,239.61/110,721.72 = 44,420.65/x
  3. Step 3: Cross multiply
    80,239.61x = 110,721.72 × 44,420.65
  4. Step 4: Simplify right side
    80,239.61x = 4,918,330,771.52
  5. Step 5: Solve for x
    x = 4,918,330,771.52/80,239.61
  6. Step 6: Final answer
    x = 61,295.55

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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.