Home / 51,375.15-70,902.81-30,153.96

Finding the Fourth Proportional to 51,375.15, 70,902.81 and 30,153.96

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Solution

The fourth proportional to 51,375.15, 70,902.81 and 30,153.96 is: 41,615.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,375.15 : 70,902.81 = 30,153.96 : x
  2. Step 2: Convert to fraction form
    51,375.15/70,902.81 = 30,153.96/x
  3. Step 3: Cross multiply
    51,375.15x = 70,902.81 × 30,153.96
  4. Step 4: Simplify right side
    51,375.15x = 2,138,000,496.63
  5. Step 5: Solve for x
    x = 2,138,000,496.63/51,375.15
  6. Step 6: Final answer
    x = 41,615.46

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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.