Home / 51,384.03-77,033.91-19,787.55

Finding the Fourth Proportional to 51,384.03, 77,033.91 and 19,787.55

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Solution

The fourth proportional to 51,384.03, 77,033.91 and 19,787.55 is: 29,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,384.03 : 77,033.91 = 19,787.55 : x
  2. Step 2: Convert to fraction form
    51,384.03/77,033.91 = 19,787.55/x
  3. Step 3: Cross multiply
    51,384.03x = 77,033.91 × 19,787.55
  4. Step 4: Simplify right side
    51,384.03x = 1,524,312,345.82
  5. Step 5: Solve for x
    x = 1,524,312,345.82/51,384.03
  6. Step 6: Final answer
    x = 29,665.10

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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.