Home / 84,562.40-126,802.70-31,218.24

Finding the Fourth Proportional to 84,562.40, 126,802.70 and 31,218.24

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Solution

The fourth proportional to 84,562.40, 126,802.70 and 31,218.24 is: 46,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,562.40 : 126,802.70 = 31,218.24 : x
  2. Step 2: Convert to fraction form
    84,562.40/126,802.70 = 31,218.24/x
  3. Step 3: Cross multiply
    84,562.40x = 126,802.70 × 31,218.24
  4. Step 4: Simplify right side
    84,562.40x = 3,958,557,121.25
  5. Step 5: Solve for x
    x = 3,958,557,121.25/84,562.40
  6. Step 6: Final answer
    x = 46,812.26

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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.