Home / 91,122.75-125,747.63-50,290.72

Finding the Fourth Proportional to 91,122.75, 125,747.63 and 50,290.72

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Solution

The fourth proportional to 91,122.75, 125,747.63 and 50,290.72 is: 69,400.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,122.75 : 125,747.63 = 50,290.72 : x
  2. Step 2: Convert to fraction form
    91,122.75/125,747.63 = 50,290.72/x
  3. Step 3: Cross multiply
    91,122.75x = 125,747.63 × 50,290.72
  4. Step 4: Simplify right side
    91,122.75x = 6,323,938,285.17
  5. Step 5: Solve for x
    x = 6,323,938,285.17/91,122.75
  6. Step 6: Final answer
    x = 69,400.21

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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.