Home / 90,632.84-135,874.38-39,995.80

Finding the Fourth Proportional to 90,632.84, 135,874.38 and 39,995.80

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Solution

The fourth proportional to 90,632.84, 135,874.38 and 39,995.80 is: 59,960.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,632.84 : 135,874.38 = 39,995.80 : x
  2. Step 2: Convert to fraction form
    90,632.84/135,874.38 = 39,995.80/x
  3. Step 3: Cross multiply
    90,632.84x = 135,874.38 × 39,995.80
  4. Step 4: Simplify right side
    90,632.84x = 5,434,404,527.60
  5. Step 5: Solve for x
    x = 5,434,404,527.60/90,632.84
  6. Step 6: Final answer
    x = 59,960.66

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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.