Home / 51,900.31-77,847.22-20,713.15

Finding the Fourth Proportional to 51,900.31, 77,847.22 and 20,713.15

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Solution

The fourth proportional to 51,900.31, 77,847.22 and 20,713.15 is: 31,068.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,900.31 : 77,847.22 = 20,713.15 : x
  2. Step 2: Convert to fraction form
    51,900.31/77,847.22 = 20,713.15/x
  3. Step 3: Cross multiply
    51,900.31x = 77,847.22 × 20,713.15
  4. Step 4: Simplify right side
    51,900.31x = 1,612,461,144.94
  5. Step 5: Solve for x
    x = 1,612,461,144.94/51,900.31
  6. Step 6: Final answer
    x = 31,068.43

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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.