Home / 45,462.06-68,166-18,787.32

Finding the Fourth Proportional to 45,462.06, 68,166 and 18,787.32

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Solution

The fourth proportional to 45,462.06, 68,166 and 18,787.32 is: 28,169.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,462.06 : 68,166 = 18,787.32 : x
  2. Step 2: Convert to fraction form
    45,462.06/68,166 = 18,787.32/x
  3. Step 3: Cross multiply
    45,462.06x = 68,166 × 18,787.32
  4. Step 4: Simplify right side
    45,462.06x = 1,280,656,455.12
  5. Step 5: Solve for x
    x = 1,280,656,455.12/45,462.06
  6. Step 6: Final answer
    x = 28,169.78

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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.