Home / 81,634.04-122,427.86-31,703.48

Finding the Fourth Proportional to 81,634.04, 122,427.86 and 31,703.48

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Solution

The fourth proportional to 81,634.04, 122,427.86 and 31,703.48 is: 47,546.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,634.04 : 122,427.86 = 31,703.48 : x
  2. Step 2: Convert to fraction form
    81,634.04/122,427.86 = 31,703.48/x
  3. Step 3: Cross multiply
    81,634.04x = 122,427.86 × 31,703.48
  4. Step 4: Simplify right side
    81,634.04x = 3,881,388,678.07
  5. Step 5: Solve for x
    x = 3,881,388,678.07/81,634.04
  6. Step 6: Final answer
    x = 47,546.21

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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.