Home / 52,019.10-78,028.85-12,576.15

Finding the Fourth Proportional to 52,019.10, 78,028.85 and 12,576.15

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Solution

The fourth proportional to 52,019.10, 78,028.85 and 12,576.15 is: 18,864.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,019.10 : 78,028.85 = 12,576.15 : x
  2. Step 2: Convert to fraction form
    52,019.10/78,028.85 = 12,576.15/x
  3. Step 3: Cross multiply
    52,019.10x = 78,028.85 × 12,576.15
  4. Step 4: Simplify right side
    52,019.10x = 981,302,521.93
  5. Step 5: Solve for x
    x = 981,302,521.93/52,019.10
  6. Step 6: Final answer
    x = 18,864.27

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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.