Home / 42,786.10-64,187.66-21,737.98

Finding the Fourth Proportional to 42,786.10, 64,187.66 and 21,737.98

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Solution

The fourth proportional to 42,786.10, 64,187.66 and 21,737.98 is: 32,611.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,786.10 : 64,187.66 = 21,737.98 : x
  2. Step 2: Convert to fraction form
    42,786.10/64,187.66 = 21,737.98/x
  3. Step 3: Cross multiply
    42,786.10x = 64,187.66 × 21,737.98
  4. Step 4: Simplify right side
    42,786.10x = 1,395,310,069.33
  5. Step 5: Solve for x
    x = 1,395,310,069.33/42,786.10
  6. Step 6: Final answer
    x = 32,611.29

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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.