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Finding the Fourth Proportional to 85,344.48, 117,772.92 and 47,617.92

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Solution

The fourth proportional to 85,344.48, 117,772.92 and 47,617.92 is: 65,711.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,344.48 : 117,772.92 = 47,617.92 : x
  2. Step 2: Convert to fraction form
    85,344.48/117,772.92 = 47,617.92/x
  3. Step 3: Cross multiply
    85,344.48x = 117,772.92 × 47,617.92
  4. Step 4: Simplify right side
    85,344.48x = 5,608,101,482.73
  5. Step 5: Solve for x
    x = 5,608,101,482.73/85,344.48
  6. Step 6: Final answer
    x = 65,711.36

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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.