Home / 51,582.98-71,180.38-28,918.89

Finding the Fourth Proportional to 51,582.98, 71,180.38 and 28,918.89

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Solution

The fourth proportional to 51,582.98, 71,180.38 and 28,918.89 is: 39,905.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,582.98 : 71,180.38 = 28,918.89 : x
  2. Step 2: Convert to fraction form
    51,582.98/71,180.38 = 28,918.89/x
  3. Step 3: Cross multiply
    51,582.98x = 71,180.38 × 28,918.89
  4. Step 4: Simplify right side
    51,582.98x = 2,058,457,466.74
  5. Step 5: Solve for x
    x = 2,058,457,466.74/51,582.98
  6. Step 6: Final answer
    x = 39,905.75

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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.