Home / 89,805.30-134,532.99-54,657.78

Finding the Fourth Proportional to 89,805.30, 134,532.99 and 54,657.78

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Solution

The fourth proportional to 89,805.30, 134,532.99 and 54,657.78 is: 81,880.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,805.30 : 134,532.99 = 54,657.78 : x
  2. Step 2: Convert to fraction form
    89,805.30/134,532.99 = 54,657.78/x
  3. Step 3: Cross multiply
    89,805.30x = 134,532.99 × 54,657.78
  4. Step 4: Simplify right side
    89,805.30x = 7,353,274,570.16
  5. Step 5: Solve for x
    x = 7,353,274,570.16/89,805.30
  6. Step 6: Final answer
    x = 81,880.18

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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.