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Finding the Fourth Proportional to 83,695.63, 115,520.06 and 47,906.39

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Solution

The fourth proportional to 83,695.63, 115,520.06 and 47,906.39 is: 66,122.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,695.63 : 115,520.06 = 47,906.39 : x
  2. Step 2: Convert to fraction form
    83,695.63/115,520.06 = 47,906.39/x
  3. Step 3: Cross multiply
    83,695.63x = 115,520.06 × 47,906.39
  4. Step 4: Simplify right side
    83,695.63x = 5,534,148,807.65
  5. Step 5: Solve for x
    x = 5,534,148,807.65/83,695.63
  6. Step 6: Final answer
    x = 66,122.31

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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.