Home / 43,952.80-65,910-12,787.36

Finding the Fourth Proportional to 43,952.80, 65,910 and 12,787.36

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Solution

The fourth proportional to 43,952.80, 65,910 and 12,787.36 is: 19,175.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,952.80 : 65,910 = 12,787.36 : x
  2. Step 2: Convert to fraction form
    43,952.80/65,910 = 12,787.36/x
  3. Step 3: Cross multiply
    43,952.80x = 65,910 × 12,787.36
  4. Step 4: Simplify right side
    43,952.80x = 842,814,897.60
  5. Step 5: Solve for x
    x = 842,814,897.60/43,952.80
  6. Step 6: Final answer
    x = 19,175.45

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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.