Home / 66,683.24-91,979.52-42,772.04

Finding the Fourth Proportional to 66,683.24, 91,979.52 and 42,772.04

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Solution

The fourth proportional to 66,683.24, 91,979.52 and 42,772.04 is: 58,997.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,683.24 : 91,979.52 = 42,772.04 : x
  2. Step 2: Convert to fraction form
    66,683.24/91,979.52 = 42,772.04/x
  3. Step 3: Cross multiply
    66,683.24x = 91,979.52 × 42,772.04
  4. Step 4: Simplify right side
    66,683.24x = 3,934,151,708.62
  5. Step 5: Solve for x
    x = 3,934,151,708.62/66,683.24
  6. Step 6: Final answer
    x = 58,997.61

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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.