Home / 45,157.32-67,688.46-21,734.28

Finding the Fourth Proportional to 45,157.32, 67,688.46 and 21,734.28

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Solution

The fourth proportional to 45,157.32, 67,688.46 and 21,734.28 is: 32,578.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,157.32 : 67,688.46 = 21,734.28 : x
  2. Step 2: Convert to fraction form
    45,157.32/67,688.46 = 21,734.28/x
  3. Step 3: Cross multiply
    45,157.32x = 67,688.46 × 21,734.28
  4. Step 4: Simplify right side
    45,157.32x = 1,471,159,942.41
  5. Step 5: Solve for x
    x = 1,471,159,942.41/45,157.32
  6. Step 6: Final answer
    x = 32,578.55

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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.