Home / 51,421.87-70,957.75-29,912.05

Finding the Fourth Proportional to 51,421.87, 70,957.75 and 29,912.05

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Solution

The fourth proportional to 51,421.87, 70,957.75 and 29,912.05 is: 41,276.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,421.87 : 70,957.75 = 29,912.05 : x
  2. Step 2: Convert to fraction form
    51,421.87/70,957.75 = 29,912.05/x
  3. Step 3: Cross multiply
    51,421.87x = 70,957.75 × 29,912.05
  4. Step 4: Simplify right side
    51,421.87x = 2,122,491,765.89
  5. Step 5: Solve for x
    x = 2,122,491,765.89/51,421.87
  6. Step 6: Final answer
    x = 41,276.05

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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.