Home / 66,150.07-91,224.83-51,018.76

Finding the Fourth Proportional to 66,150.07, 91,224.83 and 51,018.76

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Solution

The fourth proportional to 66,150.07, 91,224.83 and 51,018.76 is: 70,357.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,150.07 : 91,224.83 = 51,018.76 : x
  2. Step 2: Convert to fraction form
    66,150.07/91,224.83 = 51,018.76/x
  3. Step 3: Cross multiply
    66,150.07x = 91,224.83 × 51,018.76
  4. Step 4: Simplify right side
    66,150.07x = 4,654,177,949.39
  5. Step 5: Solve for x
    x = 4,654,177,949.39/66,150.07
  6. Step 6: Final answer
    x = 70,357.87

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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.