Home / 77,743.12-107,266.50-43,745

Finding the Fourth Proportional to 77,743.12, 107,266.50 and 43,745

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Solution

The fourth proportional to 77,743.12, 107,266.50 and 43,745 is: 60,357.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,743.12 : 107,266.50 = 43,745 : x
  2. Step 2: Convert to fraction form
    77,743.12/107,266.50 = 43,745/x
  3. Step 3: Cross multiply
    77,743.12x = 107,266.50 × 43,745
  4. Step 4: Simplify right side
    77,743.12x = 4,692,373,042.50
  5. Step 5: Solve for x
    x = 4,692,373,042.50/77,743.12
  6. Step 6: Final answer
    x = 60,357.41

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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.