Home / 83,701.66-115,528.38-47,912.42

Finding the Fourth Proportional to 83,701.66, 115,528.38 and 47,912.42

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Solution

The fourth proportional to 83,701.66, 115,528.38 and 47,912.42 is: 66,130.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,701.66 : 115,528.38 = 47,912.42 : x
  2. Step 2: Convert to fraction form
    83,701.66/115,528.38 = 47,912.42/x
  3. Step 3: Cross multiply
    83,701.66x = 115,528.38 × 47,912.42
  4. Step 4: Simplify right side
    83,701.66x = 5,535,244,264.48
  5. Step 5: Solve for x
    x = 5,535,244,264.48/83,701.66
  6. Step 6: Final answer
    x = 66,130.64

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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.