Home / 54,710.78-75,498.68-30,842.40

Finding the Fourth Proportional to 54,710.78, 75,498.68 and 30,842.40

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Solution

The fourth proportional to 54,710.78, 75,498.68 and 30,842.40 is: 42,561.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,710.78 : 75,498.68 = 30,842.40 : x
  2. Step 2: Convert to fraction form
    54,710.78/75,498.68 = 30,842.40/x
  3. Step 3: Cross multiply
    54,710.78x = 75,498.68 × 30,842.40
  4. Step 4: Simplify right side
    54,710.78x = 2,328,560,848.26
  5. Step 5: Solve for x
    x = 2,328,560,848.26/54,710.78
  6. Step 6: Final answer
    x = 42,561.28

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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.