Home / 54,008.10-81,012.15-53,133.30

Finding the Fourth Proportional to 54,008.10, 81,012.15 and 53,133.30

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Solution

The fourth proportional to 54,008.10, 81,012.15 and 53,133.30 is: 79,699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,008.10 : 81,012.15 = 53,133.30 : x
  2. Step 2: Convert to fraction form
    54,008.10/81,012.15 = 53,133.30/x
  3. Step 3: Cross multiply
    54,008.10x = 81,012.15 × 53,133.30
  4. Step 4: Simplify right side
    54,008.10x = 4,304,442,869.60
  5. Step 5: Solve for x
    x = 4,304,442,869.60/54,008.10
  6. Step 6: Final answer
    x = 79,699.95

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1.5x scale

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.