Home / 84,656.13-126,945.71-40,336.44

Finding the Fourth Proportional to 84,656.13, 126,945.71 and 40,336.44

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Solution

The fourth proportional to 84,656.13, 126,945.71 and 40,336.44 is: 60,486.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,656.13 : 126,945.71 = 40,336.44 : x
  2. Step 2: Convert to fraction form
    84,656.13/126,945.71 = 40,336.44/x
  3. Step 3: Cross multiply
    84,656.13x = 126,945.71 × 40,336.44
  4. Step 4: Simplify right side
    84,656.13x = 5,120,538,014.67
  5. Step 5: Solve for x
    x = 5,120,538,014.67/84,656.13
  6. Step 6: Final answer
    x = 60,486.32

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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.