Home / 54,690.40-75,474.32-30,815.76

Finding the Fourth Proportional to 54,690.40, 75,474.32 and 30,815.76

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Solution

The fourth proportional to 54,690.40, 75,474.32 and 30,815.76 is: 42,526.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,690.40 : 75,474.32 = 30,815.76 : x
  2. Step 2: Convert to fraction form
    54,690.40/75,474.32 = 30,815.76/x
  3. Step 3: Cross multiply
    54,690.40x = 75,474.32 × 30,815.76
  4. Step 4: Simplify right side
    54,690.40x = 2,325,798,531.28
  5. Step 5: Solve for x
    x = 2,325,798,531.28/54,690.40
  6. Step 6: Final answer
    x = 42,526.63

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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.