Home / 85,311.23-127,966.83-29,151.82

Finding the Fourth Proportional to 85,311.23, 127,966.83 and 29,151.82

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Solution

The fourth proportional to 85,311.23, 127,966.83 and 29,151.82 is: 43,727.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,311.23 : 127,966.83 = 29,151.82 : x
  2. Step 2: Convert to fraction form
    85,311.23/127,966.83 = 29,151.82/x
  3. Step 3: Cross multiply
    85,311.23x = 127,966.83 × 29,151.82
  4. Step 4: Simplify right side
    85,311.23x = 3,730,465,601.33
  5. Step 5: Solve for x
    x = 3,730,465,601.33/85,311.23
  6. Step 6: Final answer
    x = 43,727.72

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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.