Home / 68,434.02-102,653.94-21,685.86

Finding the Fourth Proportional to 68,434.02, 102,653.94 and 21,685.86

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Solution

The fourth proportional to 68,434.02, 102,653.94 and 21,685.86 is: 32,529.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,434.02 : 102,653.94 = 21,685.86 : x
  2. Step 2: Convert to fraction form
    68,434.02/102,653.94 = 21,685.86/x
  3. Step 3: Cross multiply
    68,434.02x = 102,653.94 × 21,685.86
  4. Step 4: Simplify right side
    68,434.02x = 2,226,138,971.29
  5. Step 5: Solve for x
    x = 2,226,138,971.29/68,434.02
  6. Step 6: Final answer
    x = 32,529.71

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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.