Home / 55,119.21-82,685.61-15,679.40

Finding the Fourth Proportional to 55,119.21, 82,685.61 and 15,679.40

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Solution

The fourth proportional to 55,119.21, 82,685.61 and 15,679.40 is: 23,521.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,119.21 : 82,685.61 = 15,679.40 : x
  2. Step 2: Convert to fraction form
    55,119.21/82,685.61 = 15,679.40/x
  3. Step 3: Cross multiply
    55,119.21x = 82,685.61 × 15,679.40
  4. Step 4: Simplify right side
    55,119.21x = 1,296,460,340.01
  5. Step 5: Solve for x
    x = 1,296,460,340.01/55,119.21
  6. Step 6: Final answer
    x = 23,521.03

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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.