Home / 54,230.20-81,345.30-51,638.20

Finding the Fourth Proportional to 54,230.20, 81,345.30 and 51,638.20

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Solution

The fourth proportional to 54,230.20, 81,345.30 and 51,638.20 is: 77,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,230.20 : 81,345.30 = 51,638.20 : x
  2. Step 2: Convert to fraction form
    54,230.20/81,345.30 = 51,638.20/x
  3. Step 3: Cross multiply
    54,230.20x = 81,345.30 × 51,638.20
  4. Step 4: Simplify right side
    54,230.20x = 4,200,524,870.46
  5. Step 5: Solve for x
    x = 4,200,524,870.46/54,230.20
  6. Step 6: Final answer
    x = 77,457.30

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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.