Home / 74,475.18-111,720.96-21,888.75

Finding the Fourth Proportional to 74,475.18, 111,720.96 and 21,888.75

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Solution

The fourth proportional to 74,475.18, 111,720.96 and 21,888.75 is: 32,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,475.18 : 111,720.96 = 21,888.75 : x
  2. Step 2: Convert to fraction form
    74,475.18/111,720.96 = 21,888.75/x
  3. Step 3: Cross multiply
    74,475.18x = 111,720.96 × 21,888.75
  4. Step 4: Simplify right side
    74,475.18x = 2,445,432,163.20
  5. Step 5: Solve for x
    x = 2,445,432,163.20/74,475.18
  6. Step 6: Final answer
    x = 32,835.53

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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.