Home / 66,087.78-91,185.39-37,792.86

Finding the Fourth Proportional to 66,087.78, 91,185.39 and 37,792.86

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Solution

The fourth proportional to 66,087.78, 91,185.39 and 37,792.86 is: 52,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,087.78 : 91,185.39 = 37,792.86 : x
  2. Step 2: Convert to fraction form
    66,087.78/91,185.39 = 37,792.86/x
  3. Step 3: Cross multiply
    66,087.78x = 91,185.39 × 37,792.86
  4. Step 4: Simplify right side
    66,087.78x = 3,446,156,678.32
  5. Step 5: Solve for x
    x = 3,446,156,678.32/66,087.78
  6. Step 6: Final answer
    x = 52,145.14

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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.