Home / 56,845.09-78,446.76-31,352.43

Finding the Fourth Proportional to 56,845.09, 78,446.76 and 31,352.43

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Solution

The fourth proportional to 56,845.09, 78,446.76 and 31,352.43 is: 43,266.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,845.09 : 78,446.76 = 31,352.43 : x
  2. Step 2: Convert to fraction form
    56,845.09/78,446.76 = 31,352.43/x
  3. Step 3: Cross multiply
    56,845.09x = 78,446.76 × 31,352.43
  4. Step 4: Simplify right side
    56,845.09x = 2,459,496,551.63
  5. Step 5: Solve for x
    x = 2,459,496,551.63/56,845.09
  6. Step 6: Final answer
    x = 43,266.65

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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.