Home / 51,128.05-70,537.62-51,049.11

Finding the Fourth Proportional to 51,128.05, 70,537.62 and 51,049.11

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Solution

The fourth proportional to 51,128.05, 70,537.62 and 51,049.11 is: 70,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,128.05 : 70,537.62 = 51,049.11 : x
  2. Step 2: Convert to fraction form
    51,128.05/70,537.62 = 51,049.11/x
  3. Step 3: Cross multiply
    51,128.05x = 70,537.62 × 51,049.11
  4. Step 4: Simplify right side
    51,128.05x = 3,600,882,908.29
  5. Step 5: Solve for x
    x = 3,600,882,908.29/51,128.05
  6. Step 6: Final answer
    x = 70,428.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.