Home / 52,521.68-78,787.42-20,924.08

Finding the Fourth Proportional to 52,521.68, 78,787.42 and 20,924.08

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Solution

The fourth proportional to 52,521.68, 78,787.42 and 20,924.08 is: 31,388.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,521.68 : 78,787.42 = 20,924.08 : x
  2. Step 2: Convert to fraction form
    52,521.68/78,787.42 = 20,924.08/x
  3. Step 3: Cross multiply
    52,521.68x = 78,787.42 × 20,924.08
  4. Step 4: Simplify right side
    52,521.68x = 1,648,554,029.79
  5. Step 5: Solve for x
    x = 1,648,554,029.79/52,521.68
  6. Step 6: Final answer
    x = 31,388.07

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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.