Home / 75,553.74-113,328.30-19,391.58

Finding the Fourth Proportional to 75,553.74, 113,328.30 and 19,391.58

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Solution

The fourth proportional to 75,553.74, 113,328.30 and 19,391.58 is: 29,086.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,553.74 : 113,328.30 = 19,391.58 : x
  2. Step 2: Convert to fraction form
    75,553.74/113,328.30 = 19,391.58/x
  3. Step 3: Cross multiply
    75,553.74x = 113,328.30 × 19,391.58
  4. Step 4: Simplify right side
    75,553.74x = 2,197,614,795.71
  5. Step 5: Solve for x
    x = 2,197,614,795.71/75,553.74
  6. Step 6: Final answer
    x = 29,086.78

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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.