Home / 70,837.92-106,239.86-20,904.52

Finding the Fourth Proportional to 70,837.92, 106,239.86 and 20,904.52

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Solution

The fourth proportional to 70,837.92, 106,239.86 and 20,904.52 is: 31,351.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,837.92 : 106,239.86 = 20,904.52 : x
  2. Step 2: Convert to fraction form
    70,837.92/106,239.86 = 20,904.52/x
  3. Step 3: Cross multiply
    70,837.92x = 106,239.86 × 20,904.52
  4. Step 4: Simplify right side
    70,837.92x = 2,220,893,278.17
  5. Step 5: Solve for x
    x = 2,220,893,278.17/70,837.92
  6. Step 6: Final answer
    x = 31,351.76

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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.