Home / 56,786.27-78,368.48-31,292.58

Finding the Fourth Proportional to 56,786.27, 78,368.48 and 31,292.58

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Solution

The fourth proportional to 56,786.27, 78,368.48 and 31,292.58 is: 43,185.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,786.27 : 78,368.48 = 31,292.58 : x
  2. Step 2: Convert to fraction form
    56,786.27/78,368.48 = 31,292.58/x
  3. Step 3: Cross multiply
    56,786.27x = 78,368.48 × 31,292.58
  4. Step 4: Simplify right side
    56,786.27x = 2,452,351,773.42
  5. Step 5: Solve for x
    x = 2,452,351,773.42/56,786.27
  6. Step 6: Final answer
    x = 43,185.65

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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.