Home / 91,942.76-137,657.19-49,671.39

Finding the Fourth Proportional to 91,942.76, 137,657.19 and 49,671.39

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Solution

The fourth proportional to 91,942.76, 137,657.19 and 49,671.39 is: 74,368.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,942.76 : 137,657.19 = 49,671.39 : x
  2. Step 2: Convert to fraction form
    91,942.76/137,657.19 = 49,671.39/x
  3. Step 3: Cross multiply
    91,942.76x = 137,657.19 × 49,671.39
  4. Step 4: Simplify right side
    91,942.76x = 6,837,623,867.01
  5. Step 5: Solve for x
    x = 6,837,623,867.01/91,942.76
  6. Step 6: Final answer
    x = 74,368.27

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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.