Home / 90,537.48-135,806.24-28,212.84

Finding the Fourth Proportional to 90,537.48, 135,806.24 and 28,212.84

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Solution

The fourth proportional to 90,537.48, 135,806.24 and 28,212.84 is: 42,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,537.48 : 135,806.24 = 28,212.84 : x
  2. Step 2: Convert to fraction form
    90,537.48/135,806.24 = 28,212.84/x
  3. Step 3: Cross multiply
    90,537.48x = 135,806.24 × 28,212.84
  4. Step 4: Simplify right side
    90,537.48x = 3,831,479,720.12
  5. Step 5: Solve for x
    x = 3,831,479,720.12/90,537.48
  6. Step 6: Final answer
    x = 42,319.27

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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.