Home / 91,971.50-137,832.51-41,989.64

Finding the Fourth Proportional to 91,971.50, 137,832.51 and 41,989.64

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Solution

The fourth proportional to 91,971.50, 137,832.51 and 41,989.64 is: 62,927.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,971.50 : 137,832.51 = 41,989.64 : x
  2. Step 2: Convert to fraction form
    91,971.50/137,832.51 = 41,989.64/x
  3. Step 3: Cross multiply
    91,971.50x = 137,832.51 × 41,989.64
  4. Step 4: Simplify right side
    91,971.50x = 5,787,537,475.20
  5. Step 5: Solve for x
    x = 5,787,537,475.20/91,971.50
  6. Step 6: Final answer
    x = 62,927.51

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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.