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Finding the Fourth Proportional to 66,587.97, 91,888.62 and 37,911.87

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Solution

The fourth proportional to 66,587.97, 91,888.62 and 37,911.87 is: 52,316.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,587.97 : 91,888.62 = 37,911.87 : x
  2. Step 2: Convert to fraction form
    66,587.97/91,888.62 = 37,911.87/x
  3. Step 3: Cross multiply
    66,587.97x = 91,888.62 × 37,911.87
  4. Step 4: Simplify right side
    66,587.97x = 3,483,669,415.92
  5. Step 5: Solve for x
    x = 3,483,669,415.92/66,587.97
  6. Step 6: Final answer
    x = 52,316.80

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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.