Home / 54,655.65-81,985.50-19,110.02

Finding the Fourth Proportional to 54,655.65, 81,985.50 and 19,110.02

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Solution

The fourth proportional to 54,655.65, 81,985.50 and 19,110.02 is: 28,665.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,655.65 : 81,985.50 = 19,110.02 : x
  2. Step 2: Convert to fraction form
    54,655.65/81,985.50 = 19,110.02/x
  3. Step 3: Cross multiply
    54,655.65x = 81,985.50 × 19,110.02
  4. Step 4: Simplify right side
    54,655.65x = 1,566,744,134.78
  5. Step 5: Solve for x
    x = 1,566,744,134.78/54,655.65
  6. Step 6: Final answer
    x = 28,665.73

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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.