Home / 65,558.76-98,338.70-21,185.52

Finding the Fourth Proportional to 65,558.76, 98,338.70 and 21,185.52

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Solution

The fourth proportional to 65,558.76, 98,338.70 and 21,185.52 is: 31,778.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,558.76 : 98,338.70 = 21,185.52 : x
  2. Step 2: Convert to fraction form
    65,558.76/98,338.70 = 21,185.52/x
  3. Step 3: Cross multiply
    65,558.76x = 98,338.70 × 21,185.52
  4. Step 4: Simplify right side
    65,558.76x = 2,083,356,495.62
  5. Step 5: Solve for x
    x = 2,083,356,495.62/65,558.76
  6. Step 6: Final answer
    x = 31,778.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.