Home / 83,555.43-115,304.34-47,745.45

Finding the Fourth Proportional to 83,555.43, 115,304.34 and 47,745.45

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Solution

The fourth proportional to 83,555.43, 115,304.34 and 47,745.45 is: 65,887.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,555.43 : 115,304.34 = 47,745.45 : x
  2. Step 2: Convert to fraction form
    83,555.43/115,304.34 = 47,745.45/x
  3. Step 3: Cross multiply
    83,555.43x = 115,304.34 × 47,745.45
  4. Step 4: Simplify right side
    83,555.43x = 5,505,257,376.45
  5. Step 5: Solve for x
    x = 5,505,257,376.45/83,555.43
  6. Step 6: Final answer
    x = 65,887.49

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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.