Home / 56,690.39-78,232.97-31,196.86

Finding the Fourth Proportional to 56,690.39, 78,232.97 and 31,196.86

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Solution

The fourth proportional to 56,690.39, 78,232.97 and 31,196.86 is: 43,051.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,690.39 : 78,232.97 = 31,196.86 : x
  2. Step 2: Convert to fraction form
    56,690.39/78,232.97 = 31,196.86/x
  3. Step 3: Cross multiply
    56,690.39x = 78,232.97 × 31,196.86
  4. Step 4: Simplify right side
    56,690.39x = 2,440,623,012.47
  5. Step 5: Solve for x
    x = 2,440,623,012.47/56,690.39
  6. Step 6: Final answer
    x = 43,051.79

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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.