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Finding the Fourth Proportional to 74,388.48, 111,487.84 and 34,858.40

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Solution

The fourth proportional to 74,388.48, 111,487.84 and 34,858.40 is: 52,243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,388.48 : 111,487.84 = 34,858.40 : x
  2. Step 2: Convert to fraction form
    74,388.48/111,487.84 = 34,858.40/x
  3. Step 3: Cross multiply
    74,388.48x = 111,487.84 × 34,858.40
  4. Step 4: Simplify right side
    74,388.48x = 3,886,287,721.86
  5. Step 5: Solve for x
    x = 3,886,287,721.86/74,388.48
  6. Step 6: Final answer
    x = 52,243.14

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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.