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Finding the Fourth Proportional to 71,502.57, 98,673.57 and 39,671.39

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Solution

The fourth proportional to 71,502.57, 98,673.57 and 39,671.39 is: 54,746.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,502.57 : 98,673.57 = 39,671.39 : x
  2. Step 2: Convert to fraction form
    71,502.57/98,673.57 = 39,671.39/x
  3. Step 3: Cross multiply
    71,502.57x = 98,673.57 × 39,671.39
  4. Step 4: Simplify right side
    71,502.57x = 3,914,517,924.85
  5. Step 5: Solve for x
    x = 3,914,517,924.85/71,502.57
  6. Step 6: Final answer
    x = 54,746.53

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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.