Home / 54,655.95-81,976.13-17,215.05

Finding the Fourth Proportional to 54,655.95, 81,976.13 and 17,215.05

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Solution

The fourth proportional to 54,655.95, 81,976.13 and 17,215.05 is: 25,820.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,655.95 : 81,976.13 = 17,215.05 : x
  2. Step 2: Convert to fraction form
    54,655.95/81,976.13 = 17,215.05/x
  3. Step 3: Cross multiply
    54,655.95x = 81,976.13 × 17,215.05
  4. Step 4: Simplify right side
    54,655.95x = 1,411,223,176.76
  5. Step 5: Solve for x
    x = 1,411,223,176.76/54,655.95
  6. Step 6: Final answer
    x = 25,820.12

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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.