Home / 85,051.20-127,576.86-38,249.40

Finding the Fourth Proportional to 85,051.20, 127,576.86 and 38,249.40

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Solution

The fourth proportional to 85,051.20, 127,576.86 and 38,249.40 is: 57,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,051.20 : 127,576.86 = 38,249.40 : x
  2. Step 2: Convert to fraction form
    85,051.20/127,576.86 = 38,249.40/x
  3. Step 3: Cross multiply
    85,051.20x = 127,576.86 × 38,249.40
  4. Step 4: Simplify right side
    85,051.20x = 4,879,738,348.88
  5. Step 5: Solve for x
    x = 4,879,738,348.88/85,051.20
  6. Step 6: Final answer
    x = 57,374.13

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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.