Home / 91,121.19-136,701.81-27,949.98

Finding the Fourth Proportional to 91,121.19, 136,701.81 and 27,949.98

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Solution

The fourth proportional to 91,121.19, 136,701.81 and 27,949.98 is: 41,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,121.19 : 136,701.81 = 27,949.98 : x
  2. Step 2: Convert to fraction form
    91,121.19/136,701.81 = 27,949.98/x
  3. Step 3: Cross multiply
    91,121.19x = 136,701.81 × 27,949.98
  4. Step 4: Simplify right side
    91,121.19x = 3,820,812,855.46
  5. Step 5: Solve for x
    x = 3,820,812,855.46/91,121.19
  6. Step 6: Final answer
    x = 41,931.11

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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.