Home / 124,579.28-186,934.54-54,507.80

Finding the Fourth Proportional to 124,579.28, 186,934.54 and 54,507.80

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Solution

The fourth proportional to 124,579.28, 186,934.54 and 54,507.80 is: 81,790.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,579.28 : 186,934.54 = 54,507.80 : x
  2. Step 2: Convert to fraction form
    124,579.28/186,934.54 = 54,507.80/x
  3. Step 3: Cross multiply
    124,579.28x = 186,934.54 × 54,507.80
  4. Step 4: Simplify right side
    124,579.28x = 10,189,390,519.41
  5. Step 5: Solve for x
    x = 10,189,390,519.41/124,579.28
  6. Step 6: Final answer
    x = 81,790.41

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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.