Home / 51,087.20-70,486.56-29,871.68

Finding the Fourth Proportional to 51,087.20, 70,486.56 and 29,871.68

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Solution

The fourth proportional to 51,087.20, 70,486.56 and 29,871.68 is: 41,214.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,087.20 : 70,486.56 = 29,871.68 : x
  2. Step 2: Convert to fraction form
    51,087.20/70,486.56 = 29,871.68/x
  3. Step 3: Cross multiply
    51,087.20x = 70,486.56 × 29,871.68
  4. Step 4: Simplify right side
    51,087.20x = 2,105,551,964.62
  5. Step 5: Solve for x
    x = 2,105,551,964.62/51,087.20
  6. Step 6: Final answer
    x = 41,214.86

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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.