Home / 75,154.10-103,689.06-43,318.58

Finding the Fourth Proportional to 75,154.10, 103,689.06 and 43,318.58

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Solution

The fourth proportional to 75,154.10, 103,689.06 and 43,318.58 is: 59,766.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,154.10 : 103,689.06 = 43,318.58 : x
  2. Step 2: Convert to fraction form
    75,154.10/103,689.06 = 43,318.58/x
  3. Step 3: Cross multiply
    75,154.10x = 103,689.06 × 43,318.58
  4. Step 4: Simplify right side
    75,154.10x = 4,491,662,840.73
  5. Step 5: Solve for x
    x = 4,491,662,840.73/75,154.10
  6. Step 6: Final answer
    x = 59,766.04

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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.