Home / 45,200.32-67,788.32-18,899.68

Finding the Fourth Proportional to 45,200.32, 67,788.32 and 18,899.68

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Solution

The fourth proportional to 45,200.32, 67,788.32 and 18,899.68 is: 28,344.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,200.32 : 67,788.32 = 18,899.68 : x
  2. Step 2: Convert to fraction form
    45,200.32/67,788.32 = 18,899.68/x
  3. Step 3: Cross multiply
    45,200.32x = 67,788.32 × 18,899.68
  4. Step 4: Simplify right side
    45,200.32x = 1,281,177,555.74
  5. Step 5: Solve for x
    x = 1,281,177,555.74/45,200.32
  6. Step 6: Final answer
    x = 28,344.44

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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.