Home / 56,670.90-78,204.75-31,175.77

Finding the Fourth Proportional to 56,670.90, 78,204.75 and 31,175.77

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Solution

The fourth proportional to 56,670.90, 78,204.75 and 31,175.77 is: 43,021.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,670.90 : 78,204.75 = 31,175.77 : x
  2. Step 2: Convert to fraction form
    56,670.90/78,204.75 = 31,175.77/x
  3. Step 3: Cross multiply
    56,670.90x = 78,204.75 × 31,175.77
  4. Step 4: Simplify right side
    56,670.90x = 2,438,093,298.91
  5. Step 5: Solve for x
    x = 2,438,093,298.91/56,670.90
  6. Step 6: Final answer
    x = 43,021.96

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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.