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Finding the Fourth Proportional to 73,659.63, 110,537.87 and 40,403

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Solution

The fourth proportional to 73,659.63, 110,537.87 and 40,403 is: 60,631.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,659.63 : 110,537.87 = 40,403 : x
  2. Step 2: Convert to fraction form
    73,659.63/110,537.87 = 40,403/x
  3. Step 3: Cross multiply
    73,659.63x = 110,537.87 × 40,403
  4. Step 4: Simplify right side
    73,659.63x = 4,466,061,561.61
  5. Step 5: Solve for x
    x = 4,466,061,561.61/73,659.63
  6. Step 6: Final answer
    x = 60,631.06

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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.