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Finding the Fourth Proportional to 85,393.68, 117,836.28 and 49,572.24

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Solution

The fourth proportional to 85,393.68, 117,836.28 and 49,572.24 is: 68,405.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,393.68 : 117,836.28 = 49,572.24 : x
  2. Step 2: Convert to fraction form
    85,393.68/117,836.28 = 49,572.24/x
  3. Step 3: Cross multiply
    85,393.68x = 117,836.28 × 49,572.24
  4. Step 4: Simplify right side
    85,393.68x = 5,841,408,352.87
  5. Step 5: Solve for x
    x = 5,841,408,352.87/85,393.68
  6. Step 6: Final answer
    x = 68,405.63

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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.