Home / 90,334.35-135,510.75-31,169.85

Finding the Fourth Proportional to 90,334.35, 135,510.75 and 31,169.85

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Solution

The fourth proportional to 90,334.35, 135,510.75 and 31,169.85 is: 46,757.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,334.35 : 135,510.75 = 31,169.85 : x
  2. Step 2: Convert to fraction form
    90,334.35/135,510.75 = 31,169.85/x
  3. Step 3: Cross multiply
    90,334.35x = 135,510.75 × 31,169.85
  4. Step 4: Simplify right side
    90,334.35x = 4,223,849,750.89
  5. Step 5: Solve for x
    x = 4,223,849,750.89/90,334.35
  6. Step 6: Final answer
    x = 46,757.96

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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.