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Finding the Fourth Proportional to 71,841.84, 99,144.82 and 40,010.74

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Solution

The fourth proportional to 71,841.84, 99,144.82 and 40,010.74 is: 55,216.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,841.84 : 99,144.82 = 40,010.74 : x
  2. Step 2: Convert to fraction form
    71,841.84/99,144.82 = 40,010.74/x
  3. Step 3: Cross multiply
    71,841.84x = 99,144.82 × 40,010.74
  4. Step 4: Simplify right side
    71,841.84x = 3,966,857,615.37
  5. Step 5: Solve for x
    x = 3,966,857,615.37/71,841.84
  6. Step 6: Final answer
    x = 55,216.54

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1.5x scale

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.