Home / 74,231.13-111,334.85-21,628.31

Finding the Fourth Proportional to 74,231.13, 111,334.85 and 21,628.31

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Solution

The fourth proportional to 74,231.13, 111,334.85 and 21,628.31 is: 32,439.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,231.13 : 111,334.85 = 21,628.31 : x
  2. Step 2: Convert to fraction form
    74,231.13/111,334.85 = 21,628.31/x
  3. Step 3: Cross multiply
    74,231.13x = 111,334.85 × 21,628.31
  4. Step 4: Simplify right side
    74,231.13x = 2,407,984,541.46
  5. Step 5: Solve for x
    x = 2,407,984,541.46/74,231.13
  6. Step 6: Final answer
    x = 32,439.01

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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.