Home / 91,208.62-136,812.21-49,108.42

Finding the Fourth Proportional to 91,208.62, 136,812.21 and 49,108.42

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Solution

The fourth proportional to 91,208.62, 136,812.21 and 49,108.42 is: 73,662.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,208.62 : 136,812.21 = 49,108.42 : x
  2. Step 2: Convert to fraction form
    91,208.62/136,812.21 = 49,108.42/x
  3. Step 3: Cross multiply
    91,208.62x = 136,812.21 × 49,108.42
  4. Step 4: Simplify right side
    91,208.62x = 6,718,631,469.81
  5. Step 5: Solve for x
    x = 6,718,631,469.81/91,208.62
  6. Step 6: Final answer
    x = 73,662.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.