Home / 66,441.06-91,665.66-42,580.88

Finding the Fourth Proportional to 66,441.06, 91,665.66 and 42,580.88

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Solution

The fourth proportional to 66,441.06, 91,665.66 and 42,580.88 is: 58,746.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,441.06 : 91,665.66 = 42,580.88 : x
  2. Step 2: Convert to fraction form
    66,441.06/91,665.66 = 42,580.88/x
  3. Step 3: Cross multiply
    66,441.06x = 91,665.66 × 42,580.88
  4. Step 4: Simplify right side
    66,441.06x = 3,903,204,468.58
  5. Step 5: Solve for x
    x = 3,903,204,468.58/66,441.06
  6. Step 6: Final answer
    x = 58,746.87

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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.