Home / 90,208.52-135,342.83-30,242.92

Finding the Fourth Proportional to 90,208.52, 135,342.83 and 30,242.92

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Solution

The fourth proportional to 90,208.52, 135,342.83 and 30,242.92 is: 45,374.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,208.52 : 135,342.83 = 30,242.92 : x
  2. Step 2: Convert to fraction form
    90,208.52/135,342.83 = 30,242.92/x
  3. Step 3: Cross multiply
    90,208.52x = 135,342.83 × 30,242.92
  4. Step 4: Simplify right side
    90,208.52x = 4,093,162,455.87
  5. Step 5: Solve for x
    x = 4,093,162,455.87/90,208.52
  6. Step 6: Final answer
    x = 45,374.46

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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.