Home / 91,138.07-125,767.58-49,743.47

Finding the Fourth Proportional to 91,138.07, 125,767.58 and 49,743.47

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Solution

The fourth proportional to 91,138.07, 125,767.58 and 49,743.47 is: 68,644.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,138.07 : 125,767.58 = 49,743.47 : x
  2. Step 2: Convert to fraction form
    91,138.07/125,767.58 = 49,743.47/x
  3. Step 3: Cross multiply
    91,138.07x = 125,767.58 × 49,743.47
  4. Step 4: Simplify right side
    91,138.07x = 6,256,114,965.15
  5. Step 5: Solve for x
    x = 6,256,114,965.15/91,138.07
  6. Step 6: Final answer
    x = 68,644.37

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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.