Home / 45,118.41-67,639.56-28,441.69

Finding the Fourth Proportional to 45,118.41, 67,639.56 and 28,441.69

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Solution

The fourth proportional to 45,118.41, 67,639.56 and 28,441.69 is: 42,638.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,118.41 : 67,639.56 = 28,441.69 : x
  2. Step 2: Convert to fraction form
    45,118.41/67,639.56 = 28,441.69/x
  3. Step 3: Cross multiply
    45,118.41x = 67,639.56 × 28,441.69
  4. Step 4: Simplify right side
    45,118.41x = 1,923,783,397.26
  5. Step 5: Solve for x
    x = 1,923,783,397.26/45,118.41
  6. Step 6: Final answer
    x = 42,638.55

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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.