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Finding the Fourth Proportional to 66,935.62, 100,310.55 and 37,309.06

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Solution

The fourth proportional to 66,935.62, 100,310.55 and 37,309.06 is: 55,911.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,935.62 : 100,310.55 = 37,309.06 : x
  2. Step 2: Convert to fraction form
    66,935.62/100,310.55 = 37,309.06/x
  3. Step 3: Cross multiply
    66,935.62x = 100,310.55 × 37,309.06
  4. Step 4: Simplify right side
    66,935.62x = 3,742,492,328.58
  5. Step 5: Solve for x
    x = 3,742,492,328.58/66,935.62
  6. Step 6: Final answer
    x = 55,911.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.