Home / 45,630.54-68,435.28-20,653.79

Finding the Fourth Proportional to 45,630.54, 68,435.28 and 20,653.79

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Solution

The fourth proportional to 45,630.54, 68,435.28 and 20,653.79 is: 30,975.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,630.54 : 68,435.28 = 20,653.79 : x
  2. Step 2: Convert to fraction form
    45,630.54/68,435.28 = 20,653.79/x
  3. Step 3: Cross multiply
    45,630.54x = 68,435.28 × 20,653.79
  4. Step 4: Simplify right side
    45,630.54x = 1,413,447,559.53
  5. Step 5: Solve for x
    x = 1,413,447,559.53/45,630.54
  6. Step 6: Final answer
    x = 30,975.91

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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.