Home / 70,972.46-106,442.28-21,040.51

Finding the Fourth Proportional to 70,972.46, 106,442.28 and 21,040.51

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Solution

The fourth proportional to 70,972.46, 106,442.28 and 21,040.51 is: 31,555.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,972.46 : 106,442.28 = 21,040.51 : x
  2. Step 2: Convert to fraction form
    70,972.46/106,442.28 = 21,040.51/x
  3. Step 3: Cross multiply
    70,972.46x = 106,442.28 × 21,040.51
  4. Step 4: Simplify right side
    70,972.46x = 2,239,599,856.76
  5. Step 5: Solve for x
    x = 2,239,599,856.76/70,972.46
  6. Step 6: Final answer
    x = 31,555.90

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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.