Home / 85,520.52-128,306.70-41,134.68

Finding the Fourth Proportional to 85,520.52, 128,306.70 and 41,134.68

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Solution

The fourth proportional to 85,520.52, 128,306.70 and 41,134.68 is: 61,714.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,520.52 : 128,306.70 = 41,134.68 : x
  2. Step 2: Convert to fraction form
    85,520.52/128,306.70 = 41,134.68/x
  3. Step 3: Cross multiply
    85,520.52x = 128,306.70 × 41,134.68
  4. Step 4: Simplify right side
    85,520.52x = 5,277,855,046.36
  5. Step 5: Solve for x
    x = 5,277,855,046.36/85,520.52
  6. Step 6: Final answer
    x = 61,714.49

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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.