Home / 65,249.27-90,039.73-38,386.58

Finding the Fourth Proportional to 65,249.27, 90,039.73 and 38,386.58

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Solution

The fourth proportional to 65,249.27, 90,039.73 and 38,386.58 is: 52,970.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,249.27 : 90,039.73 = 38,386.58 : x
  2. Step 2: Convert to fraction form
    65,249.27/90,039.73 = 38,386.58/x
  3. Step 3: Cross multiply
    65,249.27x = 90,039.73 × 38,386.58
  4. Step 4: Simplify right side
    65,249.27x = 3,456,317,476.38
  5. Step 5: Solve for x
    x = 3,456,317,476.38/65,249.27
  6. Step 6: Final answer
    x = 52,970.97

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1.5x scale

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.