Home / 57,019.74-85,543.67-19,580.37

Finding the Fourth Proportional to 57,019.74, 85,543.67 and 19,580.37

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Solution

The fourth proportional to 57,019.74, 85,543.67 and 19,580.37 is: 29,375.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,019.74 : 85,543.67 = 19,580.37 : x
  2. Step 2: Convert to fraction form
    57,019.74/85,543.67 = 19,580.37/x
  3. Step 3: Cross multiply
    57,019.74x = 85,543.67 × 19,580.37
  4. Step 4: Simplify right side
    57,019.74x = 1,674,976,709.76
  5. Step 5: Solve for x
    x = 1,674,976,709.76/57,019.74
  6. Step 6: Final answer
    x = 29,375.38

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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.