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Finding the Fourth Proportional to 44,487.72, 66,712.13 and 13,315.68

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Solution

The fourth proportional to 44,487.72, 66,712.13 and 13,315.68 is: 19,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,487.72 : 66,712.13 = 13,315.68 : x
  2. Step 2: Convert to fraction form
    44,487.72/66,712.13 = 13,315.68/x
  3. Step 3: Cross multiply
    44,487.72x = 66,712.13 × 13,315.68
  4. Step 4: Simplify right side
    44,487.72x = 888,317,308.62
  5. Step 5: Solve for x
    x = 888,317,308.62/44,487.72
  6. Step 6: Final answer
    x = 19,967.70

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