Home / 56,997.18-78,655.68-31,505.26

Finding the Fourth Proportional to 56,997.18, 78,655.68 and 31,505.26

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Solution

The fourth proportional to 56,997.18, 78,655.68 and 31,505.26 is: 43,477.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,997.18 : 78,655.68 = 31,505.26 : x
  2. Step 2: Convert to fraction form
    56,997.18/78,655.68 = 31,505.26/x
  3. Step 3: Cross multiply
    56,997.18x = 78,655.68 × 31,505.26
  4. Step 4: Simplify right side
    56,997.18x = 2,478,067,648.88
  5. Step 5: Solve for x
    x = 2,478,067,648.88/56,997.18
  6. Step 6: Final answer
    x = 43,477.02

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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.