Home / 56,172.92-84,268.02-21,115.04

Finding the Fourth Proportional to 56,172.92, 84,268.02 and 21,115.04

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Solution

The fourth proportional to 56,172.92, 84,268.02 and 21,115.04 is: 31,675.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,172.92 : 84,268.02 = 21,115.04 : x
  2. Step 2: Convert to fraction form
    56,172.92/84,268.02 = 21,115.04/x
  3. Step 3: Cross multiply
    56,172.92x = 84,268.02 × 21,115.04
  4. Step 4: Simplify right side
    56,172.92x = 1,779,322,613.02
  5. Step 5: Solve for x
    x = 1,779,322,613.02/56,172.92
  6. Step 6: Final answer
    x = 31,675.81

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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.