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Finding the Fourth Proportional to 85,949.44, 118,603.92 and 47,711.20

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Solution

The fourth proportional to 85,949.44, 118,603.92 and 47,711.20 is: 65,837.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,949.44 : 118,603.92 = 47,711.20 : x
  2. Step 2: Convert to fraction form
    85,949.44/118,603.92 = 47,711.20/x
  3. Step 3: Cross multiply
    85,949.44x = 118,603.92 × 47,711.20
  4. Step 4: Simplify right side
    85,949.44x = 5,658,735,347.90
  5. Step 5: Solve for x
    x = 5,658,735,347.90/85,949.44
  6. Step 6: Final answer
    x = 65,837.95

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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.