Home / 81,266.28-112,102.32-47,270.94

Finding the Fourth Proportional to 81,266.28, 112,102.32 and 47,270.94

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Solution

The fourth proportional to 81,266.28, 112,102.32 and 47,270.94 is: 65,207.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,266.28 : 112,102.32 = 47,270.94 : x
  2. Step 2: Convert to fraction form
    81,266.28/112,102.32 = 47,270.94/x
  3. Step 3: Cross multiply
    81,266.28x = 112,102.32 × 47,270.94
  4. Step 4: Simplify right side
    81,266.28x = 5,299,182,042.58
  5. Step 5: Solve for x
    x = 5,299,182,042.58/81,266.28
  6. Step 6: Final answer
    x = 65,207.64

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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.