Home / 76,301.75-114,305.02-42,920.39

Finding the Fourth Proportional to 76,301.75, 114,305.02 and 42,920.39

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Solution

The fourth proportional to 76,301.75, 114,305.02 and 42,920.39 is: 64,297.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,301.75 : 114,305.02 = 42,920.39 : x
  2. Step 2: Convert to fraction form
    76,301.75/114,305.02 = 42,920.39/x
  3. Step 3: Cross multiply
    76,301.75x = 114,305.02 × 42,920.39
  4. Step 4: Simplify right side
    76,301.75x = 4,906,016,215.82
  5. Step 5: Solve for x
    x = 4,906,016,215.82/76,301.75
  6. Step 6: Final answer
    x = 64,297.56

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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.