Home / 90,838.55-136,169.46-43,441.40

Finding the Fourth Proportional to 90,838.55, 136,169.46 and 43,441.40

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Solution

The fourth proportional to 90,838.55, 136,169.46 and 43,441.40 is: 65,119.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,838.55 : 136,169.46 = 43,441.40 : x
  2. Step 2: Convert to fraction form
    90,838.55/136,169.46 = 43,441.40/x
  3. Step 3: Cross multiply
    90,838.55x = 136,169.46 × 43,441.40
  4. Step 4: Simplify right side
    90,838.55x = 5,915,391,298.80
  5. Step 5: Solve for x
    x = 5,915,391,298.80/90,838.55
  6. Step 6: Final answer
    x = 65,119.84

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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.