Home / 61,279.16-91,918.82-19,159.47

Finding the Fourth Proportional to 61,279.16, 91,918.82 and 19,159.47

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Solution

The fourth proportional to 61,279.16, 91,918.82 and 19,159.47 is: 28,739.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,279.16 : 91,918.82 = 19,159.47 : x
  2. Step 2: Convert to fraction form
    61,279.16/91,918.82 = 19,159.47/x
  3. Step 3: Cross multiply
    61,279.16x = 91,918.82 × 19,159.47
  4. Step 4: Simplify right side
    61,279.16x = 1,761,115,433.73
  5. Step 5: Solve for x
    x = 1,761,115,433.73/61,279.16
  6. Step 6: Final answer
    x = 28,739.22

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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.