Home / 45,579.75-68,367.02-13,989.76

Finding the Fourth Proportional to 45,579.75, 68,367.02 and 13,989.76

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Solution

The fourth proportional to 45,579.75, 68,367.02 and 13,989.76 is: 20,983.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,579.75 : 68,367.02 = 13,989.76 : x
  2. Step 2: Convert to fraction form
    45,579.75/68,367.02 = 13,989.76/x
  3. Step 3: Cross multiply
    45,579.75x = 68,367.02 × 13,989.76
  4. Step 4: Simplify right side
    45,579.75x = 956,438,251.50
  5. Step 5: Solve for x
    x = 956,438,251.50/45,579.75
  6. Step 6: Final answer
    x = 20,983.84

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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.