Home / 70,974.46-106,445.28-21,042.51

Finding the Fourth Proportional to 70,974.46, 106,445.28 and 21,042.51

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Solution

The fourth proportional to 70,974.46, 106,445.28 and 21,042.51 is: 31,558.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,974.46 : 106,445.28 = 21,042.51 : x
  2. Step 2: Convert to fraction form
    70,974.46/106,445.28 = 21,042.51/x
  3. Step 3: Cross multiply
    70,974.46x = 106,445.28 × 21,042.51
  4. Step 4: Simplify right side
    70,974.46x = 2,239,875,868.85
  5. Step 5: Solve for x
    x = 2,239,875,868.85/70,974.46
  6. Step 6: Final answer
    x = 31,558.90

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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.