Home / 56,679.86-78,213.38-32,808.02

Finding the Fourth Proportional to 56,679.86, 78,213.38 and 32,808.02

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Solution

The fourth proportional to 56,679.86, 78,213.38 and 32,808.02 is: 45,272.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,679.86 : 78,213.38 = 32,808.02 : x
  2. Step 2: Convert to fraction form
    56,679.86/78,213.38 = 32,808.02/x
  3. Step 3: Cross multiply
    56,679.86x = 78,213.38 × 32,808.02
  4. Step 4: Simplify right side
    56,679.86x = 2,566,026,135.31
  5. Step 5: Solve for x
    x = 2,566,026,135.31/56,679.86
  6. Step 6: Final answer
    x = 45,272.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.