Home / 66,045.75-99,074.64-18,661.52

Finding the Fourth Proportional to 66,045.75, 99,074.64 and 18,661.52

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Solution

The fourth proportional to 66,045.75, 99,074.64 and 18,661.52 is: 27,993.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,045.75 : 99,074.64 = 18,661.52 : x
  2. Step 2: Convert to fraction form
    66,045.75/99,074.64 = 18,661.52/x
  3. Step 3: Cross multiply
    66,045.75x = 99,074.64 × 18,661.52
  4. Step 4: Simplify right side
    66,045.75x = 1,848,883,693.52
  5. Step 5: Solve for x
    x = 1,848,883,693.52/66,045.75
  6. Step 6: Final answer
    x = 27,993.99

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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.