Home / 68,247.72-102,309.20-57,785.16

Finding the Fourth Proportional to 68,247.72, 102,309.20 and 57,785.16

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Solution

The fourth proportional to 68,247.72, 102,309.20 and 57,785.16 is: 86,624.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,247.72 : 102,309.20 = 57,785.16 : x
  2. Step 2: Convert to fraction form
    68,247.72/102,309.20 = 57,785.16/x
  3. Step 3: Cross multiply
    68,247.72x = 102,309.20 × 57,785.16
  4. Step 4: Simplify right side
    68,247.72x = 5,911,953,491.47
  5. Step 5: Solve for x
    x = 5,911,953,491.47/68,247.72
  6. Step 6: Final answer
    x = 86,624.92

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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.