Home / 66,898.12-100,346.94-20,154.76

Finding the Fourth Proportional to 66,898.12, 100,346.94 and 20,154.76

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Solution

The fourth proportional to 66,898.12, 100,346.94 and 20,154.76 is: 30,232.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,898.12 : 100,346.94 = 20,154.76 : x
  2. Step 2: Convert to fraction form
    66,898.12/100,346.94 = 20,154.76/x
  3. Step 3: Cross multiply
    66,898.12x = 100,346.94 × 20,154.76
  4. Step 4: Simplify right side
    66,898.12x = 2,022,468,492.43
  5. Step 5: Solve for x
    x = 2,022,468,492.43/66,898.12
  6. Step 6: Final answer
    x = 30,232.07

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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.