Home / 90,282.96-135,335.34-42,814.80

Finding the Fourth Proportional to 90,282.96, 135,335.34 and 42,814.80

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Solution

The fourth proportional to 90,282.96, 135,335.34 and 42,814.80 is: 64,179.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,282.96 : 135,335.34 = 42,814.80 : x
  2. Step 2: Convert to fraction form
    90,282.96/135,335.34 = 42,814.80/x
  3. Step 3: Cross multiply
    90,282.96x = 135,335.34 × 42,814.80
  4. Step 4: Simplify right side
    90,282.96x = 5,794,355,515.03
  5. Step 5: Solve for x
    x = 5,794,355,515.03/90,282.96
  6. Step 6: Final answer
    x = 64,179.95

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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.