Home / 75,815.60-113,796.30-38,417.90

Finding the Fourth Proportional to 75,815.60, 113,796.30 and 38,417.90

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Solution

The fourth proportional to 75,815.60, 113,796.30 and 38,417.90 is: 57,663.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,815.60 : 113,796.30 = 38,417.90 : x
  2. Step 2: Convert to fraction form
    75,815.60/113,796.30 = 38,417.90/x
  3. Step 3: Cross multiply
    75,815.60x = 113,796.30 × 38,417.90
  4. Step 4: Simplify right side
    75,815.60x = 4,371,814,873.77
  5. Step 5: Solve for x
    x = 4,371,814,873.77/75,815.60
  6. Step 6: Final answer
    x = 57,663.79

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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.