Home / 66,758.58-92,136.96-38,078.10

Finding the Fourth Proportional to 66,758.58, 92,136.96 and 38,078.10

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Solution

The fourth proportional to 66,758.58, 92,136.96 and 38,078.10 is: 52,553.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,758.58 : 92,136.96 = 38,078.10 : x
  2. Step 2: Convert to fraction form
    66,758.58/92,136.96 = 38,078.10/x
  3. Step 3: Cross multiply
    66,758.58x = 92,136.96 × 38,078.10
  4. Step 4: Simplify right side
    66,758.58x = 3,508,400,376.58
  5. Step 5: Solve for x
    x = 3,508,400,376.58/66,758.58
  6. Step 6: Final answer
    x = 52,553.55

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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.