Home / 66,074.54-99,018.61-51,213.92

Finding the Fourth Proportional to 66,074.54, 99,018.61 and 51,213.92

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Solution

The fourth proportional to 66,074.54, 99,018.61 and 51,213.92 is: 76,748.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,074.54 : 99,018.61 = 51,213.92 : x
  2. Step 2: Convert to fraction form
    66,074.54/99,018.61 = 51,213.92/x
  3. Step 3: Cross multiply
    66,074.54x = 99,018.61 × 51,213.92
  4. Step 4: Simplify right side
    66,074.54x = 5,071,131,171.05
  5. Step 5: Solve for x
    x = 5,071,131,171.05/66,074.54
  6. Step 6: Final answer
    x = 76,748.64

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1.5x scale

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.