Home / 45,113.66-67,679.84-13,522.45

Finding the Fourth Proportional to 45,113.66, 67,679.84 and 13,522.45

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Solution

The fourth proportional to 45,113.66, 67,679.84 and 13,522.45 is: 20,286.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,113.66 : 67,679.84 = 13,522.45 : x
  2. Step 2: Convert to fraction form
    45,113.66/67,679.84 = 13,522.45/x
  3. Step 3: Cross multiply
    45,113.66x = 67,679.84 × 13,522.45
  4. Step 4: Simplify right side
    45,113.66x = 915,197,015.60
  5. Step 5: Solve for x
    x = 915,197,015.60/45,113.66
  6. Step 6: Final answer
    x = 20,286.47

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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.