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Finding the Fourth Proportional to 66,342, 91,552.77 and 38,050.32

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Solution

The fourth proportional to 66,342, 91,552.77 and 38,050.32 is: 52,509.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,342 : 91,552.77 = 38,050.32 : x
  2. Step 2: Convert to fraction form
    66,342/91,552.77 = 38,050.32/x
  3. Step 3: Cross multiply
    66,342x = 91,552.77 × 38,050.32
  4. Step 4: Simplify right side
    66,342x = 3,483,612,195.39
  5. Step 5: Solve for x
    x = 3,483,612,195.39/66,342
  6. Step 6: Final answer
    x = 52,509.91

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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.