Home / 54,347.76-81,534-19,287.36

Finding the Fourth Proportional to 54,347.76, 81,534 and 19,287.36

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Solution

The fourth proportional to 54,347.76, 81,534 and 19,287.36 is: 28,935.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,347.76 : 81,534 = 19,287.36 : x
  2. Step 2: Convert to fraction form
    54,347.76/81,534 = 19,287.36/x
  3. Step 3: Cross multiply
    54,347.76x = 81,534 × 19,287.36
  4. Step 4: Simplify right side
    54,347.76x = 1,572,575,610.24
  5. Step 5: Solve for x
    x = 1,572,575,610.24/54,347.76
  6. Step 6: Final answer
    x = 28,935.43

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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.