Home / 66,376.32-91,564.24-39,499.68

Finding the Fourth Proportional to 66,376.32, 91,564.24 and 39,499.68

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Solution

The fourth proportional to 66,376.32, 91,564.24 and 39,499.68 is: 54,488.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,376.32 : 91,564.24 = 39,499.68 : x
  2. Step 2: Convert to fraction form
    66,376.32/91,564.24 = 39,499.68/x
  3. Step 3: Cross multiply
    66,376.32x = 91,564.24 × 39,499.68
  4. Step 4: Simplify right side
    66,376.32x = 3,616,758,179.44
  5. Step 5: Solve for x
    x = 3,616,758,179.44/66,376.32
  6. Step 6: Final answer
    x = 54,488.68

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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.