Home / 65,921.90-98,888.67-18,537.39

Finding the Fourth Proportional to 65,921.90, 98,888.67 and 18,537.39

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Solution

The fourth proportional to 65,921.90, 98,888.67 and 18,537.39 is: 27,807.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,921.90 : 98,888.67 = 18,537.39 : x
  2. Step 2: Convert to fraction form
    65,921.90/98,888.67 = 18,537.39/x
  3. Step 3: Cross multiply
    65,921.90x = 98,888.67 × 18,537.39
  4. Step 4: Simplify right side
    65,921.90x = 1,833,137,842.37
  5. Step 5: Solve for x
    x = 1,833,137,842.37/65,921.90
  6. Step 6: Final answer
    x = 27,807.72

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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.