Home / 56,733.82-78,291.97-31,239.64

Finding the Fourth Proportional to 56,733.82, 78,291.97 and 31,239.64

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Solution

The fourth proportional to 56,733.82, 78,291.97 and 31,239.64 is: 43,110.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,733.82 : 78,291.97 = 31,239.64 : x
  2. Step 2: Convert to fraction form
    56,733.82/78,291.97 = 31,239.64/x
  3. Step 3: Cross multiply
    56,733.82x = 78,291.97 × 31,239.64
  4. Step 4: Simplify right side
    56,733.82x = 2,445,812,977.46
  5. Step 5: Solve for x
    x = 2,445,812,977.46/56,733.82
  6. Step 6: Final answer
    x = 43,110.32

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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.