Home / 54,139.31-81,208.05-16,188.66

Finding the Fourth Proportional to 54,139.31, 81,208.05 and 16,188.66

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Solution

The fourth proportional to 54,139.31, 81,208.05 and 16,188.66 is: 24,282.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,139.31 : 81,208.05 = 16,188.66 : x
  2. Step 2: Convert to fraction form
    54,139.31/81,208.05 = 16,188.66/x
  3. Step 3: Cross multiply
    54,139.31x = 81,208.05 × 16,188.66
  4. Step 4: Simplify right side
    54,139.31x = 1,314,649,510.71
  5. Step 5: Solve for x
    x = 1,314,649,510.71/54,139.31
  6. Step 6: Final answer
    x = 24,282.72

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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.