Home / 83,236.86-124,796.88-30,639.60

Finding the Fourth Proportional to 83,236.86, 124,796.88 and 30,639.60

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Solution

The fourth proportional to 83,236.86, 124,796.88 and 30,639.60 is: 45,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,236.86 : 124,796.88 = 30,639.60 : x
  2. Step 2: Convert to fraction form
    83,236.86/124,796.88 = 30,639.60/x
  3. Step 3: Cross multiply
    83,236.86x = 124,796.88 × 30,639.60
  4. Step 4: Simplify right side
    83,236.86x = 3,823,726,484.45
  5. Step 5: Solve for x
    x = 3,823,726,484.45/83,236.86
  6. Step 6: Final answer
    x = 45,937.90

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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.