Home / 83,945.57-115,859.36-53,729.33

Finding the Fourth Proportional to 83,945.57, 115,859.36 and 53,729.33

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Solution

The fourth proportional to 83,945.57, 115,859.36 and 53,729.33 is: 74,155.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,945.57 : 115,859.36 = 53,729.33 : x
  2. Step 2: Convert to fraction form
    83,945.57/115,859.36 = 53,729.33/x
  3. Step 3: Cross multiply
    83,945.57x = 115,859.36 × 53,729.33
  4. Step 4: Simplify right side
    83,945.57x = 6,225,045,342.06
  5. Step 5: Solve for x
    x = 6,225,045,342.06/83,945.57
  6. Step 6: Final answer
    x = 74,155.74

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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.