Home / 91,643.75-137,496.81-51,614.36

Finding the Fourth Proportional to 91,643.75, 137,496.81 and 51,614.36

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Solution

The fourth proportional to 91,643.75, 137,496.81 and 51,614.36 is: 77,439.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,643.75 : 137,496.81 = 51,614.36 : x
  2. Step 2: Convert to fraction form
    91,643.75/137,496.81 = 51,614.36/x
  3. Step 3: Cross multiply
    91,643.75x = 137,496.81 × 51,614.36
  4. Step 4: Simplify right side
    91,643.75x = 7,096,809,850.19
  5. Step 5: Solve for x
    x = 7,096,809,850.19/91,643.75
  6. Step 6: Final answer
    x = 77,439.10

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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.