Home / 68,423.00-102,636.05-54,392.72

Finding the Fourth Proportional to 68,423.00, 102,636.05 and 54,392.72

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Solution

The fourth proportional to 68,423.00, 102,636.05 and 54,392.72 is: 81,590.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,423.00 : 102,636.05 = 54,392.72 : x
  2. Step 2: Convert to fraction form
    68,423.00/102,636.05 = 54,392.72/x
  3. Step 3: Cross multiply
    68,423.00x = 102,636.05 × 54,392.72
  4. Step 4: Simplify right side
    68,423.00x = 5,582,653,144.41
  5. Step 5: Solve for x
    x = 5,582,653,144.41/68,423.00
  6. Step 6: Final answer
    x = 81,590.31

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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.