Home / 76,358.88-105,374.94-42,372.54

Finding the Fourth Proportional to 76,358.88, 105,374.94 and 42,372.54

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Solution

The fourth proportional to 76,358.88, 105,374.94 and 42,372.54 is: 58,473.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,358.88 : 105,374.94 = 42,372.54 : x
  2. Step 2: Convert to fraction form
    76,358.88/105,374.94 = 42,372.54/x
  3. Step 3: Cross multiply
    76,358.88x = 105,374.94 × 42,372.54
  4. Step 4: Simplify right side
    76,358.88x = 4,465,003,860.15
  5. Step 5: Solve for x
    x = 4,465,003,860.15/76,358.88
  6. Step 6: Final answer
    x = 58,473.93

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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.