Home / 90,638.50-135,923.04-29,834.50

Finding the Fourth Proportional to 90,638.50, 135,923.04 and 29,834.50

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Solution

The fourth proportional to 90,638.50, 135,923.04 and 29,834.50 is: 44,740.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,638.50 : 135,923.04 = 29,834.50 : x
  2. Step 2: Convert to fraction form
    90,638.50/135,923.04 = 29,834.50/x
  3. Step 3: Cross multiply
    90,638.50x = 135,923.04 × 29,834.50
  4. Step 4: Simplify right side
    90,638.50x = 4,055,195,936.88
  5. Step 5: Solve for x
    x = 4,055,195,936.88/90,638.50
  6. Step 6: Final answer
    x = 44,740.32

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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.