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Finding the Fourth Proportional to 66,442.60, 99,663.90 and 41,866.60

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Solution

The fourth proportional to 66,442.60, 99,663.90 and 41,866.60 is: 62,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,442.60 : 99,663.90 = 41,866.60 : x
  2. Step 2: Convert to fraction form
    66,442.60/99,663.90 = 41,866.60/x
  3. Step 3: Cross multiply
    66,442.60x = 99,663.90 × 41,866.60
  4. Step 4: Simplify right side
    66,442.60x = 4,172,588,635.74
  5. Step 5: Solve for x
    x = 4,172,588,635.74/66,442.60
  6. Step 6: Final answer
    x = 62,799.90

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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.