Home / 90,274.85-135,401.33-45,933.43

Finding the Fourth Proportional to 90,274.85, 135,401.33 and 45,933.43

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Solution

The fourth proportional to 90,274.85, 135,401.33 and 45,933.43 is: 68,894.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,274.85 : 135,401.33 = 45,933.43 : x
  2. Step 2: Convert to fraction form
    90,274.85/135,401.33 = 45,933.43/x
  3. Step 3: Cross multiply
    90,274.85x = 135,401.33 × 45,933.43
  4. Step 4: Simplify right side
    90,274.85x = 6,219,447,513.46
  5. Step 5: Solve for x
    x = 6,219,447,513.46/90,274.85
  6. Step 6: Final answer
    x = 68,894.58

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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.