Home / 74,115.64-111,176.55-21,525.13

Finding the Fourth Proportional to 74,115.64, 111,176.55 and 21,525.13

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Solution

The fourth proportional to 74,115.64, 111,176.55 and 21,525.13 is: 32,288.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,115.64 : 111,176.55 = 21,525.13 : x
  2. Step 2: Convert to fraction form
    74,115.64/111,176.55 = 21,525.13/x
  3. Step 3: Cross multiply
    74,115.64x = 111,176.55 × 21,525.13
  4. Step 4: Simplify right side
    74,115.64x = 2,393,089,691.70
  5. Step 5: Solve for x
    x = 2,393,089,691.70/74,115.64
  6. Step 6: Final answer
    x = 32,288.59

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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.