Home / 90,756.50-125,226.02-54,949.84

Finding the Fourth Proportional to 90,756.50, 125,226.02 and 54,949.84

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Solution

The fourth proportional to 90,756.50, 125,226.02 and 54,949.84 is: 75,819.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,756.50 : 125,226.02 = 54,949.84 : x
  2. Step 2: Convert to fraction form
    90,756.50/125,226.02 = 54,949.84/x
  3. Step 3: Cross multiply
    90,756.50x = 125,226.02 × 54,949.84
  4. Step 4: Simplify right side
    90,756.50x = 6,881,149,136.71
  5. Step 5: Solve for x
    x = 6,881,149,136.71/90,756.50
  6. Step 6: Final answer
    x = 75,819.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.