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Finding the Fourth Proportional to 84,040.69, 115,976.17 and 45,800.25

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Solution

The fourth proportional to 84,040.69, 115,976.17 and 45,800.25 is: 63,204.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,040.69 : 115,976.17 = 45,800.25 : x
  2. Step 2: Convert to fraction form
    84,040.69/115,976.17 = 45,800.25/x
  3. Step 3: Cross multiply
    84,040.69x = 115,976.17 × 45,800.25
  4. Step 4: Simplify right side
    84,040.69x = 5,311,737,290.10
  5. Step 5: Solve for x
    x = 5,311,737,290.10/84,040.69
  6. Step 6: Final answer
    x = 63,204.35

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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.