Home / 56,769.40-78,347.88-31,278.33

Finding the Fourth Proportional to 56,769.40, 78,347.88 and 31,278.33

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Solution

The fourth proportional to 56,769.40, 78,347.88 and 31,278.33 is: 43,167.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,769.40 : 78,347.88 = 31,278.33 : x
  2. Step 2: Convert to fraction form
    56,769.40/78,347.88 = 31,278.33/x
  3. Step 3: Cross multiply
    56,769.40x = 78,347.88 × 31,278.33
  4. Step 4: Simplify right side
    56,769.40x = 2,450,590,845.44
  5. Step 5: Solve for x
    x = 2,450,590,845.44/56,769.40
  6. Step 6: Final answer
    x = 43,167.46

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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.