Home / 65,945.27-91,001.75-38,717.60

Finding the Fourth Proportional to 65,945.27, 91,001.75 and 38,717.60

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Solution

The fourth proportional to 65,945.27, 91,001.75 and 38,717.60 is: 53,428.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,945.27 : 91,001.75 = 38,717.60 : x
  2. Step 2: Convert to fraction form
    65,945.27/91,001.75 = 38,717.60/x
  3. Step 3: Cross multiply
    65,945.27x = 91,001.75 × 38,717.60
  4. Step 4: Simplify right side
    65,945.27x = 3,523,368,707.20
  5. Step 5: Solve for x
    x = 3,523,368,707.20/65,945.27
  6. Step 6: Final answer
    x = 53,428.68

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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.