Home / 66,024.78-91,084.68-39,168.42

Finding the Fourth Proportional to 66,024.78, 91,084.68 and 39,168.42

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Solution

The fourth proportional to 66,024.78, 91,084.68 and 39,168.42 is: 54,034.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,024.78 : 91,084.68 = 39,168.42 : x
  2. Step 2: Convert to fraction form
    66,024.78/91,084.68 = 39,168.42/x
  3. Step 3: Cross multiply
    66,024.78x = 91,084.68 × 39,168.42
  4. Step 4: Simplify right side
    66,024.78x = 3,567,643,001.81
  5. Step 5: Solve for x
    x = 3,567,643,001.81/66,024.78
  6. Step 6: Final answer
    x = 54,034.91

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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.