Home / 52,019.42-78,029.16-12,576.54

Finding the Fourth Proportional to 52,019.42, 78,029.16 and 12,576.54

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Solution

The fourth proportional to 52,019.42, 78,029.16 and 12,576.54 is: 18,864.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,019.42 : 78,029.16 = 12,576.54 : x
  2. Step 2: Convert to fraction form
    52,019.42/78,029.16 = 12,576.54/x
  3. Step 3: Cross multiply
    52,019.42x = 78,029.16 × 12,576.54
  4. Step 4: Simplify right side
    52,019.42x = 981,336,851.91
  5. Step 5: Solve for x
    x = 981,336,851.91/52,019.42
  6. Step 6: Final answer
    x = 18,864.82

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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.