Home / 91,065.19-136,617.22-31,904.41

Finding the Fourth Proportional to 91,065.19, 136,617.22 and 31,904.41

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Solution

The fourth proportional to 91,065.19, 136,617.22 and 31,904.41 is: 47,863.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,065.19 : 136,617.22 = 31,904.41 : x
  2. Step 2: Convert to fraction form
    91,065.19/136,617.22 = 31,904.41/x
  3. Step 3: Cross multiply
    91,065.19x = 136,617.22 × 31,904.41
  4. Step 4: Simplify right side
    91,065.19x = 4,358,691,325.33
  5. Step 5: Solve for x
    x = 4,358,691,325.33/91,065.19
  6. Step 6: Final answer
    x = 47,863.42

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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.