Home / 54,547.16-81,820.80-19,489.55

Finding the Fourth Proportional to 54,547.16, 81,820.80 and 19,489.55

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Solution

The fourth proportional to 54,547.16, 81,820.80 and 19,489.55 is: 29,234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,547.16 : 81,820.80 = 19,489.55 : x
  2. Step 2: Convert to fraction form
    54,547.16/81,820.80 = 19,489.55/x
  3. Step 3: Cross multiply
    54,547.16x = 81,820.80 × 19,489.55
  4. Step 4: Simplify right side
    54,547.16x = 1,594,650,163.54
  5. Step 5: Solve for x
    x = 1,594,650,163.54/54,547.16
  6. Step 6: Final answer
    x = 29,234.34

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1.5x scale

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.