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Finding the Fourth Proportional to 74,335.60, 111,503.40 and 49,409.20

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Solution

The fourth proportional to 74,335.60, 111,503.40 and 49,409.20 is: 74,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,335.60 : 111,503.40 = 49,409.20 : x
  2. Step 2: Convert to fraction form
    74,335.60/111,503.40 = 49,409.20/x
  3. Step 3: Cross multiply
    74,335.60x = 111,503.40 × 49,409.20
  4. Step 4: Simplify right side
    74,335.60x = 5,509,293,791.28
  5. Step 5: Solve for x
    x = 5,509,293,791.28/74,335.60
  6. Step 6: Final answer
    x = 74,113.80

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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.