Home / 56,828.85-78,422.31-31,334.79

Finding the Fourth Proportional to 56,828.85, 78,422.31 and 31,334.79

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Solution

The fourth proportional to 56,828.85, 78,422.31 and 31,334.79 is: 43,241.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,828.85 : 78,422.31 = 31,334.79 : x
  2. Step 2: Convert to fraction form
    56,828.85/78,422.31 = 31,334.79/x
  3. Step 3: Cross multiply
    56,828.85x = 78,422.31 × 31,334.79
  4. Step 4: Simplify right side
    56,828.85x = 2,457,346,247.56
  5. Step 5: Solve for x
    x = 2,457,346,247.56/56,828.85
  6. Step 6: Final answer
    x = 43,241.17

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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.