Home / 74,385.87-111,578.81-21,795.36

Finding the Fourth Proportional to 74,385.87, 111,578.81 and 21,795.36

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Solution

The fourth proportional to 74,385.87, 111,578.81 and 21,795.36 is: 32,693.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,385.87 : 111,578.81 = 21,795.36 : x
  2. Step 2: Convert to fraction form
    74,385.87/111,578.81 = 21,795.36/x
  3. Step 3: Cross multiply
    74,385.87x = 111,578.81 × 21,795.36
  4. Step 4: Simplify right side
    74,385.87x = 2,431,900,223.34
  5. Step 5: Solve for x
    x = 2,431,900,223.34/74,385.87
  6. Step 6: Final answer
    x = 32,693.04

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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.