Home / 66,619.44-91,889.73-42,775.05

Finding the Fourth Proportional to 66,619.44, 91,889.73 and 42,775.05

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Solution

The fourth proportional to 66,619.44, 91,889.73 and 42,775.05 is: 59,000.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,619.44 : 91,889.73 = 42,775.05 : x
  2. Step 2: Convert to fraction form
    66,619.44/91,889.73 = 42,775.05/x
  3. Step 3: Cross multiply
    66,619.44x = 91,889.73 × 42,775.05
  4. Step 4: Simplify right side
    66,619.44x = 3,930,587,795.24
  5. Step 5: Solve for x
    x = 3,930,587,795.24/66,619.44
  6. Step 6: Final answer
    x = 59,000.61

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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.