Home / 70,669.82-106,008.36-18,079.76

Finding the Fourth Proportional to 70,669.82, 106,008.36 and 18,079.76

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Solution

The fourth proportional to 70,669.82, 106,008.36 and 18,079.76 is: 27,120.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,669.82 : 106,008.36 = 18,079.76 : x
  2. Step 2: Convert to fraction form
    70,669.82/106,008.36 = 18,079.76/x
  3. Step 3: Cross multiply
    70,669.82x = 106,008.36 × 18,079.76
  4. Step 4: Simplify right side
    70,669.82x = 1,916,605,706.79
  5. Step 5: Solve for x
    x = 1,916,605,706.79/70,669.82
  6. Step 6: Final answer
    x = 27,120.57

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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.