Home / 66,215.88-91,317.38-49,262.58

Finding the Fourth Proportional to 66,215.88, 91,317.38 and 49,262.58

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Solution

The fourth proportional to 66,215.88, 91,317.38 and 49,262.58 is: 67,937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,215.88 : 91,317.38 = 49,262.58 : x
  2. Step 2: Convert to fraction form
    66,215.88/91,317.38 = 49,262.58/x
  3. Step 3: Cross multiply
    66,215.88x = 91,317.38 × 49,262.58
  4. Step 4: Simplify right side
    66,215.88x = 4,498,529,491.33
  5. Step 5: Solve for x
    x = 4,498,529,491.33/66,215.88
  6. Step 6: Final answer
    x = 67,937.32

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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.