Home / 74,581.18-111,838.29-21,972.22

Finding the Fourth Proportional to 74,581.18, 111,838.29 and 21,972.22

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Solution

The fourth proportional to 74,581.18, 111,838.29 and 21,972.22 is: 32,948.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,581.18 : 111,838.29 = 21,972.22 : x
  2. Step 2: Convert to fraction form
    74,581.18/111,838.29 = 21,972.22/x
  3. Step 3: Cross multiply
    74,581.18x = 111,838.29 × 21,972.22
  4. Step 4: Simplify right side
    74,581.18x = 2,457,335,512.30
  5. Step 5: Solve for x
    x = 2,457,335,512.30/74,581.18
  6. Step 6: Final answer
    x = 32,948.47

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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.