Home / 66,570.92-91,867.73-39,749.52

Finding the Fourth Proportional to 66,570.92, 91,867.73 and 39,749.52

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Solution

The fourth proportional to 66,570.92, 91,867.73 and 39,749.52 is: 54,854.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,570.92 : 91,867.73 = 39,749.52 : x
  2. Step 2: Convert to fraction form
    66,570.92/91,867.73 = 39,749.52/x
  3. Step 3: Cross multiply
    66,570.92x = 91,867.73 × 39,749.52
  4. Step 4: Simplify right side
    66,570.92x = 3,651,698,170.99
  5. Step 5: Solve for x
    x = 3,651,698,170.99/66,570.92
  6. Step 6: Final answer
    x = 54,854.25

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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.