Home / 83,773.10-115,633.82-53,639.58

Finding the Fourth Proportional to 83,773.10, 115,633.82 and 53,639.58

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Solution

The fourth proportional to 83,773.10, 115,633.82 and 53,639.58 is: 74,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,773.10 : 115,633.82 = 53,639.58 : x
  2. Step 2: Convert to fraction form
    83,773.10/115,633.82 = 53,639.58/x
  3. Step 3: Cross multiply
    83,773.10x = 115,633.82 × 53,639.58
  4. Step 4: Simplify right side
    83,773.10x = 6,202,549,538.60
  5. Step 5: Solve for x
    x = 6,202,549,538.60/83,773.10
  6. Step 6: Final answer
    x = 74,039.87

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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.