Home / 76,317.87-105,318.96-42,329.52

Finding the Fourth Proportional to 76,317.87, 105,318.96 and 42,329.52

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Solution

The fourth proportional to 76,317.87, 105,318.96 and 42,329.52 is: 58,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,317.87 : 105,318.96 = 42,329.52 : x
  2. Step 2: Convert to fraction form
    76,317.87/105,318.96 = 42,329.52/x
  3. Step 3: Cross multiply
    76,317.87x = 105,318.96 × 42,329.52
  4. Step 4: Simplify right side
    76,317.87x = 4,458,101,023.70
  5. Step 5: Solve for x
    x = 4,458,101,023.70/76,317.87
  6. Step 6: Final answer
    x = 58,414.90

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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.