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Finding the Fourth Proportional to 66,810.30, 100,215.45 and 41,927.10

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Solution

The fourth proportional to 66,810.30, 100,215.45 and 41,927.10 is: 62,890.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,810.30 : 100,215.45 = 41,927.10 : x
  2. Step 2: Convert to fraction form
    66,810.30/100,215.45 = 41,927.10/x
  3. Step 3: Cross multiply
    66,810.30x = 100,215.45 × 41,927.10
  4. Step 4: Simplify right side
    66,810.30x = 4,201,743,193.70
  5. Step 5: Solve for x
    x = 4,201,743,193.70/66,810.30
  6. Step 6: Final answer
    x = 62,890.65

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1.5x scale

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.