Home / 91,942.40-137,910.86-25,386.60

Finding the Fourth Proportional to 91,942.40, 137,910.86 and 25,386.60

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Solution

The fourth proportional to 91,942.40, 137,910.86 and 25,386.60 is: 38,079.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,942.40 : 137,910.86 = 25,386.60 : x
  2. Step 2: Convert to fraction form
    91,942.40/137,910.86 = 25,386.60/x
  3. Step 3: Cross multiply
    91,942.40x = 137,910.86 × 25,386.60
  4. Step 4: Simplify right side
    91,942.40x = 3,501,087,838.48
  5. Step 5: Solve for x
    x = 3,501,087,838.48/91,942.40
  6. Step 6: Final answer
    x = 38,079.14

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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.