Home / 68,521.37-102,674.33-52,707.31

Finding the Fourth Proportional to 68,521.37, 102,674.33 and 52,707.31

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Solution

The fourth proportional to 68,521.37, 102,674.33 and 52,707.31 is: 78,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,521.37 : 102,674.33 = 52,707.31 : x
  2. Step 2: Convert to fraction form
    68,521.37/102,674.33 = 52,707.31/x
  3. Step 3: Cross multiply
    68,521.37x = 102,674.33 × 52,707.31
  4. Step 4: Simplify right side
    68,521.37x = 5,411,687,714.26
  5. Step 5: Solve for x
    x = 5,411,687,714.26/68,521.37
  6. Step 6: Final answer
    x = 78,978.10

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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.