Home / 54,900.18-82,401.30-21,643.20

Finding the Fourth Proportional to 54,900.18, 82,401.30 and 21,643.20

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Solution

The fourth proportional to 54,900.18, 82,401.30 and 21,643.20 is: 32,484.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,900.18 : 82,401.30 = 21,643.20 : x
  2. Step 2: Convert to fraction form
    54,900.18/82,401.30 = 21,643.20/x
  3. Step 3: Cross multiply
    54,900.18x = 82,401.30 × 21,643.20
  4. Step 4: Simplify right side
    54,900.18x = 1,783,427,816.16
  5. Step 5: Solve for x
    x = 1,783,427,816.16/54,900.18
  6. Step 6: Final answer
    x = 32,484.92

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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.