Home / 49,903.12-68,863.56-31,040.08

Finding the Fourth Proportional to 49,903.12, 68,863.56 and 31,040.08

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Solution

The fourth proportional to 49,903.12, 68,863.56 and 31,040.08 is: 42,833.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,903.12 : 68,863.56 = 31,040.08 : x
  2. Step 2: Convert to fraction form
    49,903.12/68,863.56 = 31,040.08/x
  3. Step 3: Cross multiply
    49,903.12x = 68,863.56 × 31,040.08
  4. Step 4: Simplify right side
    49,903.12x = 2,137,530,411.48
  5. Step 5: Solve for x
    x = 2,137,530,411.48/49,903.12
  6. Step 6: Final answer
    x = 42,833.60

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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.