Home / 51,013.53-70,399.26-28,353.92

Finding the Fourth Proportional to 51,013.53, 70,399.26 and 28,353.92

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Solution

The fourth proportional to 51,013.53, 70,399.26 and 28,353.92 is: 39,128.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,013.53 : 70,399.26 = 28,353.92 : x
  2. Step 2: Convert to fraction form
    51,013.53/70,399.26 = 28,353.92/x
  3. Step 3: Cross multiply
    51,013.53x = 70,399.26 × 28,353.92
  4. Step 4: Simplify right side
    51,013.53x = 1,996,094,634.10
  5. Step 5: Solve for x
    x = 1,996,094,634.10/51,013.53
  6. Step 6: Final answer
    x = 39,128.73

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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.