Home / 54,969.12-75,868.32-31,095.84

Finding the Fourth Proportional to 54,969.12, 75,868.32 and 31,095.84

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Solution

The fourth proportional to 54,969.12, 75,868.32 and 31,095.84 is: 42,918.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,969.12 : 75,868.32 = 31,095.84 : x
  2. Step 2: Convert to fraction form
    54,969.12/75,868.32 = 31,095.84/x
  3. Step 3: Cross multiply
    54,969.12x = 75,868.32 × 31,095.84
  4. Step 4: Simplify right side
    54,969.12x = 2,359,189,139.79
  5. Step 5: Solve for x
    x = 2,359,189,139.79/54,969.12
  6. Step 6: Final answer
    x = 42,918.44

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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.