Home / 54,765.15-75,583.71-30,894.05

Finding the Fourth Proportional to 54,765.15, 75,583.71 and 30,894.05

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Solution

The fourth proportional to 54,765.15, 75,583.71 and 30,894.05 is: 42,638.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,765.15 : 75,583.71 = 30,894.05 : x
  2. Step 2: Convert to fraction form
    54,765.15/75,583.71 = 30,894.05/x
  3. Step 3: Cross multiply
    54,765.15x = 75,583.71 × 30,894.05
  4. Step 4: Simplify right side
    54,765.15x = 2,335,086,538.01
  5. Step 5: Solve for x
    x = 2,335,086,538.01/54,765.15
  6. Step 6: Final answer
    x = 42,638.18

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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.