Home / 83,540.77-115,292.38-47,730.01

Finding the Fourth Proportional to 83,540.77, 115,292.38 and 47,730.01

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Solution

The fourth proportional to 83,540.77, 115,292.38 and 47,730.01 is: 65,870.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,540.77 : 115,292.38 = 47,730.01 : x
  2. Step 2: Convert to fraction form
    83,540.77/115,292.38 = 47,730.01/x
  3. Step 3: Cross multiply
    83,540.77x = 115,292.38 × 47,730.01
  4. Step 4: Simplify right side
    83,540.77x = 5,502,906,450.32
  5. Step 5: Solve for x
    x = 5,502,906,450.32/83,540.77
  6. Step 6: Final answer
    x = 65,870.91

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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.