Home / 85,717.24-128,700.70-63,297.10

Finding the Fourth Proportional to 85,717.24, 128,700.70 and 63,297.10

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Solution

The fourth proportional to 85,717.24, 128,700.70 and 63,297.10 is: 95,037.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,717.24 : 128,700.70 = 63,297.10 : x
  2. Step 2: Convert to fraction form
    85,717.24/128,700.70 = 63,297.10/x
  3. Step 3: Cross multiply
    85,717.24x = 128,700.70 × 63,297.10
  4. Step 4: Simplify right side
    85,717.24x = 8,146,380,356.66
  5. Step 5: Solve for x
    x = 8,146,380,356.66/85,717.24
  6. Step 6: Final answer
    x = 95,037.83

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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.