Home / 90,402.45-135,612.67-33,491.58

Finding the Fourth Proportional to 90,402.45, 135,612.67 and 33,491.58

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Solution

The fourth proportional to 90,402.45, 135,612.67 and 33,491.58 is: 50,240.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,402.45 : 135,612.67 = 33,491.58 : x
  2. Step 2: Convert to fraction form
    90,402.45/135,612.67 = 33,491.58/x
  3. Step 3: Cross multiply
    90,402.45x = 135,612.67 × 33,491.58
  4. Step 4: Simplify right side
    90,402.45x = 4,541,882,586.32
  5. Step 5: Solve for x
    x = 4,541,882,586.32/90,402.45
  6. Step 6: Final answer
    x = 50,240.70

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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.