Home / 81,975.06-122,938.29-35,217

Finding the Fourth Proportional to 81,975.06, 122,938.29 and 35,217

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Solution

The fourth proportional to 81,975.06, 122,938.29 and 35,217 is: 52,815.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,975.06 : 122,938.29 = 35,217 : x
  2. Step 2: Convert to fraction form
    81,975.06/122,938.29 = 35,217/x
  3. Step 3: Cross multiply
    81,975.06x = 122,938.29 × 35,217
  4. Step 4: Simplify right side
    81,975.06x = 4,329,517,758.93
  5. Step 5: Solve for x
    x = 4,329,517,758.93/81,975.06
  6. Step 6: Final answer
    x = 52,815.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.