Home / 45,358.05-68,040.51-12,077.98

Finding the Fourth Proportional to 45,358.05, 68,040.51 and 12,077.98

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Solution

The fourth proportional to 45,358.05, 68,040.51 and 12,077.98 is: 18,117.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,358.05 : 68,040.51 = 12,077.98 : x
  2. Step 2: Convert to fraction form
    45,358.05/68,040.51 = 12,077.98/x
  3. Step 3: Cross multiply
    45,358.05x = 68,040.51 × 12,077.98
  4. Step 4: Simplify right side
    45,358.05x = 821,791,918.97
  5. Step 5: Solve for x
    x = 821,791,918.97/45,358.05
  6. Step 6: Final answer
    x = 18,117.88

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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.