Home / 74,430.30-111,645.45-68,727.90

Finding the Fourth Proportional to 74,430.30, 111,645.45 and 68,727.90

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Solution

The fourth proportional to 74,430.30, 111,645.45 and 68,727.90 is: 103,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.30 : 111,645.45 = 68,727.90 : x
  2. Step 2: Convert to fraction form
    74,430.30/111,645.45 = 68,727.90/x
  3. Step 3: Cross multiply
    74,430.30x = 111,645.45 × 68,727.90
  4. Step 4: Simplify right side
    74,430.30x = 7,673,157,323.06
  5. Step 5: Solve for x
    x = 7,673,157,323.06/74,430.30
  6. Step 6: Final answer
    x = 103,091.85

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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.