Home / 91,330.12-137,072.94-35,965

Finding the Fourth Proportional to 91,330.12, 137,072.94 and 35,965

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Solution

The fourth proportional to 91,330.12, 137,072.94 and 35,965 is: 53,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,330.12 : 137,072.94 = 35,965 : x
  2. Step 2: Convert to fraction form
    91,330.12/137,072.94 = 35,965/x
  3. Step 3: Cross multiply
    91,330.12x = 137,072.94 × 35,965
  4. Step 4: Simplify right side
    91,330.12x = 4,929,828,287.10
  5. Step 5: Solve for x
    x = 4,929,828,287.10/91,330.12
  6. Step 6: Final answer
    x = 53,978.12

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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.