Home / 90,550.13-135,832.68-28,220.63

Finding the Fourth Proportional to 90,550.13, 135,832.68 and 28,220.63

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Solution

The fourth proportional to 90,550.13, 135,832.68 and 28,220.63 is: 42,333.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,550.13 : 135,832.68 = 28,220.63 : x
  2. Step 2: Convert to fraction form
    90,550.13/135,832.68 = 28,220.63/x
  3. Step 3: Cross multiply
    90,550.13x = 135,832.68 × 28,220.63
  4. Step 4: Simplify right side
    90,550.13x = 3,833,283,125.03
  5. Step 5: Solve for x
    x = 3,833,283,125.03/90,550.13
  6. Step 6: Final answer
    x = 42,333.27

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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.