Home / 52,290.50-78,438.78-19,010.43

Finding the Fourth Proportional to 52,290.50, 78,438.78 and 19,010.43

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Solution

The fourth proportional to 52,290.50, 78,438.78 and 19,010.43 is: 28,516.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,290.50 : 78,438.78 = 19,010.43 : x
  2. Step 2: Convert to fraction form
    52,290.50/78,438.78 = 19,010.43/x
  3. Step 3: Cross multiply
    52,290.50x = 78,438.78 × 19,010.43
  4. Step 4: Simplify right side
    52,290.50x = 1,491,154,936.48
  5. Step 5: Solve for x
    x = 1,491,154,936.48/52,290.50
  6. Step 6: Final answer
    x = 28,516.75

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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.