Home / 51,202.89-76,839.17-31,421.07

Finding the Fourth Proportional to 51,202.89, 76,839.17 and 31,421.07

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Solution

The fourth proportional to 51,202.89, 76,839.17 and 31,421.07 is: 47,152.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,202.89 : 76,839.17 = 31,421.07 : x
  2. Step 2: Convert to fraction form
    51,202.89/76,839.17 = 31,421.07/x
  3. Step 3: Cross multiply
    51,202.89x = 76,839.17 × 31,421.07
  4. Step 4: Simplify right side
    51,202.89x = 2,414,368,782.21
  5. Step 5: Solve for x
    x = 2,414,368,782.21/51,202.89
  6. Step 6: Final answer
    x = 47,152.98

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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.