Home / 62,190.68-85,755.38-42,012.54

Finding the Fourth Proportional to 62,190.68, 85,755.38 and 42,012.54

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Solution

The fourth proportional to 62,190.68, 85,755.38 and 42,012.54 is: 57,931.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,190.68 : 85,755.38 = 42,012.54 : x
  2. Step 2: Convert to fraction form
    62,190.68/85,755.38 = 42,012.54/x
  3. Step 3: Cross multiply
    62,190.68x = 85,755.38 × 42,012.54
  4. Step 4: Simplify right side
    62,190.68x = 3,602,801,122.40
  5. Step 5: Solve for x
    x = 3,602,801,122.40/62,190.68
  6. Step 6: Final answer
    x = 57,931.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.