Home / 55,866.41-83,781.72-18,418.08

Finding the Fourth Proportional to 55,866.41, 83,781.72 and 18,418.08

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Solution

The fourth proportional to 55,866.41, 83,781.72 and 18,418.08 is: 27,621.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,866.41 : 83,781.72 = 18,418.08 : x
  2. Step 2: Convert to fraction form
    55,866.41/83,781.72 = 18,418.08/x
  3. Step 3: Cross multiply
    55,866.41x = 83,781.72 × 18,418.08
  4. Step 4: Simplify right side
    55,866.41x = 1,543,098,421.50
  5. Step 5: Solve for x
    x = 1,543,098,421.50/55,866.41
  6. Step 6: Final answer
    x = 27,621.22

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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.