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Finding the Fourth Proportional to 71,209.67, 98,247.15 and 47,340.39

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Solution

The fourth proportional to 71,209.67, 98,247.15 and 47,340.39 is: 65,314.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,209.67 : 98,247.15 = 47,340.39 : x
  2. Step 2: Convert to fraction form
    71,209.67/98,247.15 = 47,340.39/x
  3. Step 3: Cross multiply
    71,209.67x = 98,247.15 × 47,340.39
  4. Step 4: Simplify right side
    71,209.67x = 4,651,058,397.39
  5. Step 5: Solve for x
    x = 4,651,058,397.39/71,209.67
  6. Step 6: Final answer
    x = 65,314.98

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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.