Home / 55,909.08-83,837.70-20,839.32

Finding the Fourth Proportional to 55,909.08, 83,837.70 and 20,839.32

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Solution

The fourth proportional to 55,909.08, 83,837.70 and 20,839.32 is: 31,249.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,909.08 : 83,837.70 = 20,839.32 : x
  2. Step 2: Convert to fraction form
    55,909.08/83,837.70 = 20,839.32/x
  3. Step 3: Cross multiply
    55,909.08x = 83,837.70 × 20,839.32
  4. Step 4: Simplify right side
    55,909.08x = 1,747,120,658.36
  5. Step 5: Solve for x
    x = 1,747,120,658.36/55,909.08
  6. Step 6: Final answer
    x = 31,249.32

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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.