Home / 90,519.84-135,792.14-52,586.96

Finding the Fourth Proportional to 90,519.84, 135,792.14 and 52,586.96

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Solution

The fourth proportional to 90,519.84, 135,792.14 and 52,586.96 is: 78,887.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,519.84 : 135,792.14 = 52,586.96 : x
  2. Step 2: Convert to fraction form
    90,519.84/135,792.14 = 52,586.96/x
  3. Step 3: Cross multiply
    90,519.84x = 135,792.14 × 52,586.96
  4. Step 4: Simplify right side
    90,519.84x = 7,140,894,892.60
  5. Step 5: Solve for x
    x = 7,140,894,892.60/90,519.84
  6. Step 6: Final answer
    x = 78,887.62

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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.