Home / 90,220.68-135,347.52-30,243.24

Finding the Fourth Proportional to 90,220.68, 135,347.52 and 30,243.24

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Solution

The fourth proportional to 90,220.68, 135,347.52 and 30,243.24 is: 45,370.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,220.68 : 135,347.52 = 30,243.24 : x
  2. Step 2: Convert to fraction form
    90,220.68/135,347.52 = 30,243.24/x
  3. Step 3: Cross multiply
    90,220.68x = 135,347.52 × 30,243.24
  4. Step 4: Simplify right side
    90,220.68x = 4,093,347,530.76
  5. Step 5: Solve for x
    x = 4,093,347,530.76/90,220.68
  6. Step 6: Final answer
    x = 45,370.39

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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.