Home / 80,987.60-111,763.08-45,176.68

Finding the Fourth Proportional to 80,987.60, 111,763.08 and 45,176.68

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Solution

The fourth proportional to 80,987.60, 111,763.08 and 45,176.68 is: 62,343.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,987.60 : 111,763.08 = 45,176.68 : x
  2. Step 2: Convert to fraction form
    80,987.60/111,763.08 = 45,176.68/x
  3. Step 3: Cross multiply
    80,987.60x = 111,763.08 × 45,176.68
  4. Step 4: Simplify right side
    80,987.60x = 5,049,084,900.97
  5. Step 5: Solve for x
    x = 5,049,084,900.97/80,987.60
  6. Step 6: Final answer
    x = 62,343.93

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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.