Home / 74,155.22-111,243.96-21,557.86

Finding the Fourth Proportional to 74,155.22, 111,243.96 and 21,557.86

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Solution

The fourth proportional to 74,155.22, 111,243.96 and 21,557.86 is: 32,340.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,155.22 : 111,243.96 = 21,557.86 : x
  2. Step 2: Convert to fraction form
    74,155.22/111,243.96 = 21,557.86/x
  3. Step 3: Cross multiply
    74,155.22x = 111,243.96 × 21,557.86
  4. Step 4: Simplify right side
    74,155.22x = 2,398,181,715.53
  5. Step 5: Solve for x
    x = 2,398,181,715.53/74,155.22
  6. Step 6: Final answer
    x = 32,340.03

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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.