Home / 54,862.12-75,711.20-30,992.32

Finding the Fourth Proportional to 54,862.12, 75,711.20 and 30,992.32

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Solution

The fourth proportional to 54,862.12, 75,711.20 and 30,992.32 is: 42,770.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,862.12 : 75,711.20 = 30,992.32 : x
  2. Step 2: Convert to fraction form
    54,862.12/75,711.20 = 30,992.32/x
  3. Step 3: Cross multiply
    54,862.12x = 75,711.20 × 30,992.32
  4. Step 4: Simplify right side
    54,862.12x = 2,346,465,737.98
  5. Step 5: Solve for x
    x = 2,346,465,737.98/54,862.12
  6. Step 6: Final answer
    x = 42,770.23

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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.