Home / 66,292.40-91,517.41-51,151.07

Finding the Fourth Proportional to 66,292.40, 91,517.41 and 51,151.07

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Solution

The fourth proportional to 66,292.40, 91,517.41 and 51,151.07 is: 70,614.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,292.40 : 91,517.41 = 51,151.07 : x
  2. Step 2: Convert to fraction form
    66,292.40/91,517.41 = 51,151.07/x
  3. Step 3: Cross multiply
    66,292.40x = 91,517.41 × 51,151.07
  4. Step 4: Simplify right side
    66,292.40x = 4,681,213,737.86
  5. Step 5: Solve for x
    x = 4,681,213,737.86/66,292.40
  6. Step 6: Final answer
    x = 70,614.63

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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.