Home / 91,536.45-137,325.36-49,415.61

Finding the Fourth Proportional to 91,536.45, 137,325.36 and 49,415.61

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Solution

The fourth proportional to 91,536.45, 137,325.36 and 49,415.61 is: 74,134.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,536.45 : 137,325.36 = 49,415.61 : x
  2. Step 2: Convert to fraction form
    91,536.45/137,325.36 = 49,415.61/x
  3. Step 3: Cross multiply
    91,536.45x = 137,325.36 × 49,415.61
  4. Step 4: Simplify right side
    91,536.45x = 6,786,016,432.87
  5. Step 5: Solve for x
    x = 6,786,016,432.87/91,536.45
  6. Step 6: Final answer
    x = 74,134.58

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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.