Home / 91,149.05-136,771.59-46,775.80

Finding the Fourth Proportional to 91,149.05, 136,771.59 and 46,775.80

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Solution

The fourth proportional to 91,149.05, 136,771.59 and 46,775.80 is: 70,188.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,149.05 : 136,771.59 = 46,775.80 : x
  2. Step 2: Convert to fraction form
    91,149.05/136,771.59 = 46,775.80/x
  3. Step 3: Cross multiply
    91,149.05x = 136,771.59 × 46,775.80
  4. Step 4: Simplify right side
    91,149.05x = 6,397,600,622.78
  5. Step 5: Solve for x
    x = 6,397,600,622.78/91,149.05
  6. Step 6: Final answer
    x = 70,188.34

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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.