Home / 55,631.13-83,444.05-18,186.45

Finding the Fourth Proportional to 55,631.13, 83,444.05 and 18,186.45

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Solution

The fourth proportional to 55,631.13, 83,444.05 and 18,186.45 is: 27,278.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,631.13 : 83,444.05 = 18,186.45 : x
  2. Step 2: Convert to fraction form
    55,631.13/83,444.05 = 18,186.45/x
  3. Step 3: Cross multiply
    55,631.13x = 83,444.05 × 18,186.45
  4. Step 4: Simplify right side
    55,631.13x = 1,517,551,043.12
  5. Step 5: Solve for x
    x = 1,517,551,043.12/55,631.13
  6. Step 6: Final answer
    x = 27,278.81

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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.