Home / 74,189.72-111,289.70-29,816.51

Finding the Fourth Proportional to 74,189.72, 111,289.70 and 29,816.51

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Solution

The fourth proportional to 74,189.72, 111,289.70 and 29,816.51 is: 44,726.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,189.72 : 111,289.70 = 29,816.51 : x
  2. Step 2: Convert to fraction form
    74,189.72/111,289.70 = 29,816.51/x
  3. Step 3: Cross multiply
    74,189.72x = 111,289.70 × 29,816.51
  4. Step 4: Simplify right side
    74,189.72x = 3,318,269,803.32
  5. Step 5: Solve for x
    x = 3,318,269,803.32/74,189.72
  6. Step 6: Final answer
    x = 44,726.81

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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.