Home / 90,938.16-125,499.78-50,650.38

Finding the Fourth Proportional to 90,938.16, 125,499.78 and 50,650.38

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Solution

The fourth proportional to 90,938.16, 125,499.78 and 50,650.38 is: 69,900.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,938.16 : 125,499.78 = 50,650.38 : x
  2. Step 2: Convert to fraction form
    90,938.16/125,499.78 = 50,650.38/x
  3. Step 3: Cross multiply
    90,938.16x = 125,499.78 × 50,650.38
  4. Step 4: Simplify right side
    90,938.16x = 6,356,611,546.92
  5. Step 5: Solve for x
    x = 6,356,611,546.92/90,938.16
  6. Step 6: Final answer
    x = 69,900.38

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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.