Home / 77,729.32-116,618.59-27,808.31

Finding the Fourth Proportional to 77,729.32, 116,618.59 and 27,808.31

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Solution

The fourth proportional to 77,729.32, 116,618.59 and 27,808.31 is: 41,721.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,729.32 : 116,618.59 = 27,808.31 : x
  2. Step 2: Convert to fraction form
    77,729.32/116,618.59 = 27,808.31/x
  3. Step 3: Cross multiply
    77,729.32x = 116,618.59 × 27,808.31
  4. Step 4: Simplify right side
    77,729.32x = 3,242,966,072.37
  5. Step 5: Solve for x
    x = 3,242,966,072.37/77,729.32
  6. Step 6: Final answer
    x = 41,721.27

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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.