Home / 85,120.67-127,727.45-35,205.10

Finding the Fourth Proportional to 85,120.67, 127,727.45 and 35,205.10

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Solution

The fourth proportional to 85,120.67, 127,727.45 and 35,205.10 is: 52,826.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,120.67 : 127,727.45 = 35,205.10 : x
  2. Step 2: Convert to fraction form
    85,120.67/127,727.45 = 35,205.10/x
  3. Step 3: Cross multiply
    85,120.67x = 127,727.45 × 35,205.10
  4. Step 4: Simplify right side
    85,120.67x = 4,496,657,650.00
  5. Step 5: Solve for x
    x = 4,496,657,650.00/85,120.67
  6. Step 6: Final answer
    x = 52,826.86

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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.