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Finding the Fourth Proportional to 74,172.50, 111,272.70 and 29,802.77

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Solution

The fourth proportional to 74,172.50, 111,272.70 and 29,802.77 is: 44,709.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,172.50 : 111,272.70 = 29,802.77 : x
  2. Step 2: Convert to fraction form
    74,172.50/111,272.70 = 29,802.77/x
  3. Step 3: Cross multiply
    74,172.50x = 111,272.70 × 29,802.77
  4. Step 4: Simplify right side
    74,172.50x = 3,316,234,685.38
  5. Step 5: Solve for x
    x = 3,316,234,685.38/74,172.50
  6. Step 6: Final answer
    x = 44,709.76

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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.