Home / 54,149.40-81,235.02-19,113.66

Finding the Fourth Proportional to 54,149.40, 81,235.02 and 19,113.66

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Solution

The fourth proportional to 54,149.40, 81,235.02 and 19,113.66 is: 28,674.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,149.40 : 81,235.02 = 19,113.66 : x
  2. Step 2: Convert to fraction form
    54,149.40/81,235.02 = 19,113.66/x
  3. Step 3: Cross multiply
    54,149.40x = 81,235.02 × 19,113.66
  4. Step 4: Simplify right side
    54,149.40x = 1,552,698,552.37
  5. Step 5: Solve for x
    x = 1,552,698,552.37/54,149.40
  6. Step 6: Final answer
    x = 28,674.34

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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.