Home / 83,731.36-115,569.12-47,941.96

Finding the Fourth Proportional to 83,731.36, 115,569.12 and 47,941.96

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Solution

The fourth proportional to 83,731.36, 115,569.12 and 47,941.96 is: 66,171.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,731.36 : 115,569.12 = 47,941.96 : x
  2. Step 2: Convert to fraction form
    83,731.36/115,569.12 = 47,941.96/x
  3. Step 3: Cross multiply
    83,731.36x = 115,569.12 × 47,941.96
  4. Step 4: Simplify right side
    83,731.36x = 5,540,610,128.28
  5. Step 5: Solve for x
    x = 5,540,610,128.28/83,731.36
  6. Step 6: Final answer
    x = 66,171.27

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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.