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Finding the Fourth Proportional to 83,702.60, 115,504.49 and 45,976.85

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Solution

The fourth proportional to 83,702.60, 115,504.49 and 45,976.85 is: 63,445.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,702.60 : 115,504.49 = 45,976.85 : x
  2. Step 2: Convert to fraction form
    83,702.60/115,504.49 = 45,976.85/x
  3. Step 3: Cross multiply
    83,702.60x = 115,504.49 × 45,976.85
  4. Step 4: Simplify right side
    83,702.60x = 5,310,532,381.17
  5. Step 5: Solve for x
    x = 5,310,532,381.17/83,702.60
  6. Step 6: Final answer
    x = 63,445.25

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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.