Home / 90,333.35-135,509.25-31,168.85

Finding the Fourth Proportional to 90,333.35, 135,509.25 and 31,168.85

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Solution

The fourth proportional to 90,333.35, 135,509.25 and 31,168.85 is: 46,756.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,333.35 : 135,509.25 = 31,168.85 : x
  2. Step 2: Convert to fraction form
    90,333.35/135,509.25 = 31,168.85/x
  3. Step 3: Cross multiply
    90,333.35x = 135,509.25 × 31,168.85
  4. Step 4: Simplify right side
    90,333.35x = 4,223,667,688.44
  5. Step 5: Solve for x
    x = 4,223,667,688.44/90,333.35
  6. Step 6: Final answer
    x = 46,756.46

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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.