Home / 56,788.74-78,367.40-31,297.48

Finding the Fourth Proportional to 56,788.74, 78,367.40 and 31,297.48

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Solution

The fourth proportional to 56,788.74, 78,367.40 and 31,297.48 is: 43,189.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,788.74 : 78,367.40 = 31,297.48 : x
  2. Step 2: Convert to fraction form
    56,788.74/78,367.40 = 31,297.48/x
  3. Step 3: Cross multiply
    56,788.74x = 78,367.40 × 31,297.48
  4. Step 4: Simplify right side
    56,788.74x = 2,452,702,134.15
  5. Step 5: Solve for x
    x = 2,452,702,134.15/56,788.74
  6. Step 6: Final answer
    x = 43,189.94

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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.