Home / 55,317.08-82,975.64-13,764.08

Finding the Fourth Proportional to 55,317.08, 82,975.64 and 13,764.08

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Solution

The fourth proportional to 55,317.08, 82,975.64 and 13,764.08 is: 20,646.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,317.08 : 82,975.64 = 13,764.08 : x
  2. Step 2: Convert to fraction form
    55,317.08/82,975.64 = 13,764.08/x
  3. Step 3: Cross multiply
    55,317.08x = 82,975.64 × 13,764.08
  4. Step 4: Simplify right side
    55,317.08x = 1,142,083,278.19
  5. Step 5: Solve for x
    x = 1,142,083,278.19/55,317.08
  6. Step 6: Final answer
    x = 20,646.12

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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.