Home / 90,908.88-136,268.53-50,869.16

Finding the Fourth Proportional to 90,908.88, 136,268.53 and 50,869.16

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Solution

The fourth proportional to 90,908.88, 136,268.53 and 50,869.16 is: 76,250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,908.88 : 136,268.53 = 50,869.16 : x
  2. Step 2: Convert to fraction form
    90,908.88/136,268.53 = 50,869.16/x
  3. Step 3: Cross multiply
    90,908.88x = 136,268.53 × 50,869.16
  4. Step 4: Simplify right side
    90,908.88x = 6,931,865,401.19
  5. Step 5: Solve for x
    x = 6,931,865,401.19/90,908.88
  6. Step 6: Final answer
    x = 76,250.70

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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.