Home / 51,810.80-77,757.21-20,235.99

Finding the Fourth Proportional to 51,810.80, 77,757.21 and 20,235.99

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Solution

The fourth proportional to 51,810.80, 77,757.21 and 20,235.99 is: 30,370.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,810.80 : 77,757.21 = 20,235.99 : x
  2. Step 2: Convert to fraction form
    51,810.80/77,757.21 = 20,235.99/x
  3. Step 3: Cross multiply
    51,810.80x = 77,757.21 × 20,235.99
  4. Step 4: Simplify right side
    51,810.80x = 1,573,494,123.99
  5. Step 5: Solve for x
    x = 1,573,494,123.99/51,810.80
  6. Step 6: Final answer
    x = 30,370.00

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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.