Home / 45,346.68-68,043.06-20,381.70

Finding the Fourth Proportional to 45,346.68, 68,043.06 and 20,381.70

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Solution

The fourth proportional to 45,346.68, 68,043.06 and 20,381.70 is: 30,582.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,346.68 : 68,043.06 = 20,381.70 : x
  2. Step 2: Convert to fraction form
    45,346.68/68,043.06 = 20,381.70/x
  3. Step 3: Cross multiply
    45,346.68x = 68,043.06 × 20,381.70
  4. Step 4: Simplify right side
    45,346.68x = 1,386,833,236.00
  5. Step 5: Solve for x
    x = 1,386,833,236.00/45,346.68
  6. Step 6: Final answer
    x = 30,582.91

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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.