Home / 54,851.13-82,276.71-19,790.78

Finding the Fourth Proportional to 54,851.13, 82,276.71 and 19,790.78

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Solution

The fourth proportional to 54,851.13, 82,276.71 and 19,790.78 is: 29,686.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,851.13 : 82,276.71 = 19,790.78 : x
  2. Step 2: Convert to fraction form
    54,851.13/82,276.71 = 19,790.78/x
  3. Step 3: Cross multiply
    54,851.13x = 82,276.71 × 19,790.78
  4. Step 4: Simplify right side
    54,851.13x = 1,628,320,061.04
  5. Step 5: Solve for x
    x = 1,628,320,061.04/54,851.13
  6. Step 6: Final answer
    x = 29,686.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.