Home / 45,119.75-67,689.03-13,528.53

Finding the Fourth Proportional to 45,119.75, 67,689.03 and 13,528.53

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Solution

The fourth proportional to 45,119.75, 67,689.03 and 13,528.53 is: 20,295.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,119.75 : 67,689.03 = 13,528.53 : x
  2. Step 2: Convert to fraction form
    45,119.75/67,689.03 = 13,528.53/x
  3. Step 3: Cross multiply
    45,119.75x = 67,689.03 × 13,528.53
  4. Step 4: Simplify right side
    45,119.75x = 915,733,073.03
  5. Step 5: Solve for x
    x = 915,733,073.03/45,119.75
  6. Step 6: Final answer
    x = 20,295.62

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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.