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Finding the Fourth Proportional to 71,039.36, 98,029.02 and 40,824.74

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Solution

The fourth proportional to 71,039.36, 98,029.02 and 40,824.74 is: 56,335.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,039.36 : 98,029.02 = 40,824.74 : x
  2. Step 2: Convert to fraction form
    71,039.36/98,029.02 = 40,824.74/x
  3. Step 3: Cross multiply
    71,039.36x = 98,029.02 × 40,824.74
  4. Step 4: Simplify right side
    71,039.36x = 4,002,009,253.95
  5. Step 5: Solve for x
    x = 4,002,009,253.95/71,039.36
  6. Step 6: Final answer
    x = 56,335.10

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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.