Home / 52,787.36-79,180.24-21,205.52

Finding the Fourth Proportional to 52,787.36, 79,180.24 and 21,205.52

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Solution

The fourth proportional to 52,787.36, 79,180.24 and 21,205.52 is: 31,807.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,787.36 : 79,180.24 = 21,205.52 : x
  2. Step 2: Convert to fraction form
    52,787.36/79,180.24 = 21,205.52/x
  3. Step 3: Cross multiply
    52,787.36x = 79,180.24 × 21,205.52
  4. Step 4: Simplify right side
    52,787.36x = 1,679,058,162.92
  5. Step 5: Solve for x
    x = 1,679,058,162.92/52,787.36
  6. Step 6: Final answer
    x = 31,807.96

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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.