Home / 90,684.45-125,144.07-49,849.53

Finding the Fourth Proportional to 90,684.45, 125,144.07 and 49,849.53

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Solution

The fourth proportional to 90,684.45, 125,144.07 and 49,849.53 is: 68,792.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,684.45 : 125,144.07 = 49,849.53 : x
  2. Step 2: Convert to fraction form
    90,684.45/125,144.07 = 49,849.53/x
  3. Step 3: Cross multiply
    90,684.45x = 125,144.07 × 49,849.53
  4. Step 4: Simplify right side
    90,684.45x = 6,238,373,071.79
  5. Step 5: Solve for x
    x = 6,238,373,071.79/90,684.45
  6. Step 6: Final answer
    x = 68,792.09

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1.5x scale

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.