Home / 54,431.76-75,113.42-30,557.96

Finding the Fourth Proportional to 54,431.76, 75,113.42 and 30,557.96

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Solution

The fourth proportional to 54,431.76, 75,113.42 and 30,557.96 is: 42,168.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,431.76 : 75,113.42 = 30,557.96 : x
  2. Step 2: Convert to fraction form
    54,431.76/75,113.42 = 30,557.96/x
  3. Step 3: Cross multiply
    54,431.76x = 75,113.42 × 30,557.96
  4. Step 4: Simplify right side
    54,431.76x = 2,295,312,883.82
  5. Step 5: Solve for x
    x = 2,295,312,883.82/54,431.76
  6. Step 6: Final answer
    x = 42,168.63

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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.