Home / 54,871.22-75,726.09-30,989.18

Finding the Fourth Proportional to 54,871.22, 75,726.09 and 30,989.18

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Solution

The fourth proportional to 54,871.22, 75,726.09 and 30,989.18 is: 42,767.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,871.22 : 75,726.09 = 30,989.18 : x
  2. Step 2: Convert to fraction form
    54,871.22/75,726.09 = 30,989.18/x
  3. Step 3: Cross multiply
    54,871.22x = 75,726.09 × 30,989.18
  4. Step 4: Simplify right side
    54,871.22x = 2,346,689,623.02
  5. Step 5: Solve for x
    x = 2,346,689,623.02/54,871.22
  6. Step 6: Final answer
    x = 42,767.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.