Home / 90,522.30-135,564.90-45,401.75

Finding the Fourth Proportional to 90,522.30, 135,564.90 and 45,401.75

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Solution

The fourth proportional to 90,522.30, 135,564.90 and 45,401.75 is: 67,993.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,522.30 : 135,564.90 = 45,401.75 : x
  2. Step 2: Convert to fraction form
    90,522.30/135,564.90 = 45,401.75/x
  3. Step 3: Cross multiply
    90,522.30x = 135,564.90 × 45,401.75
  4. Step 4: Simplify right side
    90,522.30x = 6,154,883,867.23
  5. Step 5: Solve for x
    x = 6,154,883,867.23/90,522.30
  6. Step 6: Final answer
    x = 67,993.02

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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.