Home / 54,402.47-81,594.31-14,421.72

Finding the Fourth Proportional to 54,402.47, 81,594.31 and 14,421.72

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Solution

The fourth proportional to 54,402.47, 81,594.31 and 14,421.72 is: 21,630.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,402.47 : 81,594.31 = 14,421.72 : x
  2. Step 2: Convert to fraction form
    54,402.47/81,594.31 = 14,421.72/x
  3. Step 3: Cross multiply
    54,402.47x = 81,594.31 × 14,421.72
  4. Step 4: Simplify right side
    54,402.47x = 1,176,729,812.33
  5. Step 5: Solve for x
    x = 1,176,729,812.33/54,402.47
  6. Step 6: Final answer
    x = 21,630.08

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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.