Home / 90,255.58-135,346.10-34,086.13

Finding the Fourth Proportional to 90,255.58, 135,346.10 and 34,086.13

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Solution

The fourth proportional to 90,255.58, 135,346.10 and 34,086.13 is: 51,115.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,255.58 : 135,346.10 = 34,086.13 : x
  2. Step 2: Convert to fraction form
    90,255.58/135,346.10 = 34,086.13/x
  3. Step 3: Cross multiply
    90,255.58x = 135,346.10 × 34,086.13
  4. Step 4: Simplify right side
    90,255.58x = 4,613,424,168.08
  5. Step 5: Solve for x
    x = 4,613,424,168.08/90,255.58
  6. Step 6: Final answer
    x = 51,115.12

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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.