Home / 55,719.87-83,521.11-18,270.18

Finding the Fourth Proportional to 55,719.87, 83,521.11 and 18,270.18

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Solution

The fourth proportional to 55,719.87, 83,521.11 and 18,270.18 is: 27,386.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,719.87 : 83,521.11 = 18,270.18 : x
  2. Step 2: Convert to fraction form
    55,719.87/83,521.11 = 18,270.18/x
  3. Step 3: Cross multiply
    55,719.87x = 83,521.11 × 18,270.18
  4. Step 4: Simplify right side
    55,719.87x = 1,525,945,713.50
  5. Step 5: Solve for x
    x = 1,525,945,713.50/55,719.87
  6. Step 6: Final answer
    x = 27,386.02

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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.