Home / 85,827.66-128,760.04-35,226.80

Finding the Fourth Proportional to 85,827.66, 128,760.04 and 35,226.80

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Solution

The fourth proportional to 85,827.66, 128,760.04 and 35,226.80 is: 52,847.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,827.66 : 128,760.04 = 35,226.80 : x
  2. Step 2: Convert to fraction form
    85,827.66/128,760.04 = 35,226.80/x
  3. Step 3: Cross multiply
    85,827.66x = 128,760.04 × 35,226.80
  4. Step 4: Simplify right side
    85,827.66x = 4,535,804,177.07
  5. Step 5: Solve for x
    x = 4,535,804,177.07/85,827.66
  6. Step 6: Final answer
    x = 52,847.81

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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.