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Finding the Fourth Proportional to 73,608, 101,579.12 and 40,074.08

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Solution

The fourth proportional to 73,608, 101,579.12 and 40,074.08 is: 55,302.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,608 : 101,579.12 = 40,074.08 : x
  2. Step 2: Convert to fraction form
    73,608/101,579.12 = 40,074.08/x
  3. Step 3: Cross multiply
    73,608x = 101,579.12 × 40,074.08
  4. Step 4: Simplify right side
    73,608x = 4,070,689,781.21
  5. Step 5: Solve for x
    x = 4,070,689,781.21/73,608
  6. Step 6: Final answer
    x = 55,302.27

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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.