Home / 91,297.28-125,989.38-51,017.98

Finding the Fourth Proportional to 91,297.28, 125,989.38 and 51,017.98

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Solution

The fourth proportional to 91,297.28, 125,989.38 and 51,017.98 is: 70,404.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,297.28 : 125,989.38 = 51,017.98 : x
  2. Step 2: Convert to fraction form
    91,297.28/125,989.38 = 51,017.98/x
  3. Step 3: Cross multiply
    91,297.28x = 125,989.38 × 51,017.98
  4. Step 4: Simplify right side
    91,297.28x = 6,427,723,669.05
  5. Step 5: Solve for x
    x = 6,427,723,669.05/91,297.28
  6. Step 6: Final answer
    x = 70,404.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.