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Finding the Fourth Proportional to 85,876.95, 118,512.09 and 47,635.25

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Solution

The fourth proportional to 85,876.95, 118,512.09 and 47,635.25 is: 65,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,876.95 : 118,512.09 = 47,635.25 : x
  2. Step 2: Convert to fraction form
    85,876.95/118,512.09 = 47,635.25/x
  3. Step 3: Cross multiply
    85,876.95x = 118,512.09 × 47,635.25
  4. Step 4: Simplify right side
    85,876.95x = 5,645,352,574.97
  5. Step 5: Solve for x
    x = 5,645,352,574.97/85,876.95
  6. Step 6: Final answer
    x = 65,737.70

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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.