Home / 55,785.34-83,680.69-18,344.58

Finding the Fourth Proportional to 55,785.34, 83,680.69 and 18,344.58

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Solution

The fourth proportional to 55,785.34, 83,680.69 and 18,344.58 is: 27,517.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,785.34 : 83,680.69 = 18,344.58 : x
  2. Step 2: Convert to fraction form
    55,785.34/83,680.69 = 18,344.58/x
  3. Step 3: Cross multiply
    55,785.34x = 83,680.69 × 18,344.58
  4. Step 4: Simplify right side
    55,785.34x = 1,535,086,693.76
  5. Step 5: Solve for x
    x = 1,535,086,693.76/55,785.34
  6. Step 6: Final answer
    x = 27,517.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.