Home / 57,160.79-85,743.23-19,722.08

Finding the Fourth Proportional to 57,160.79, 85,743.23 and 19,722.08

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Solution

The fourth proportional to 57,160.79, 85,743.23 and 19,722.08 is: 29,583.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,160.79 : 85,743.23 = 19,722.08 : x
  2. Step 2: Convert to fraction form
    57,160.79/85,743.23 = 19,722.08/x
  3. Step 3: Cross multiply
    57,160.79x = 85,743.23 × 19,722.08
  4. Step 4: Simplify right side
    57,160.79x = 1,691,034,314.19
  5. Step 5: Solve for x
    x = 1,691,034,314.19/57,160.79
  6. Step 6: Final answer
    x = 29,583.82

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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.