Home / 78,828.12-118,261.38-23,424.12

Finding the Fourth Proportional to 78,828.12, 118,261.38 and 23,424.12

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Solution

The fourth proportional to 78,828.12, 118,261.38 and 23,424.12 is: 35,141.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,828.12 : 118,261.38 = 23,424.12 : x
  2. Step 2: Convert to fraction form
    78,828.12/118,261.38 = 23,424.12/x
  3. Step 3: Cross multiply
    78,828.12x = 118,261.38 × 23,424.12
  4. Step 4: Simplify right side
    78,828.12x = 2,770,168,756.49
  5. Step 5: Solve for x
    x = 2,770,168,756.49/78,828.12
  6. Step 6: Final answer
    x = 35,141.89

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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.