Home / 91,919.11-137,847.66-34,979.50

Finding the Fourth Proportional to 91,919.11, 137,847.66 and 34,979.50

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Solution

The fourth proportional to 91,919.11, 137,847.66 and 34,979.50 is: 52,457.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,919.11 : 137,847.66 = 34,979.50 : x
  2. Step 2: Convert to fraction form
    91,919.11/137,847.66 = 34,979.50/x
  3. Step 3: Cross multiply
    91,919.11x = 137,847.66 × 34,979.50
  4. Step 4: Simplify right side
    91,919.11x = 4,821,842,222.97
  5. Step 5: Solve for x
    x = 4,821,842,222.97/91,919.11
  6. Step 6: Final answer
    x = 52,457.45

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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.