Home / 78,132.14-107,751.48-51,264.44

Finding the Fourth Proportional to 78,132.14, 107,751.48 and 51,264.44

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Solution

The fourth proportional to 78,132.14, 107,751.48 and 51,264.44 is: 70,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,132.14 : 107,751.48 = 51,264.44 : x
  2. Step 2: Convert to fraction form
    78,132.14/107,751.48 = 51,264.44/x
  3. Step 3: Cross multiply
    78,132.14x = 107,751.48 × 51,264.44
  4. Step 4: Simplify right side
    78,132.14x = 5,523,819,281.37
  5. Step 5: Solve for x
    x = 5,523,819,281.37/78,132.14
  6. Step 6: Final answer
    x = 70,698.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.