Home / 98,374.88-135,743.64-55,928.72

Finding the Fourth Proportional to 98,374.88, 135,743.64 and 55,928.72

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Solution

The fourth proportional to 98,374.88, 135,743.64 and 55,928.72 is: 77,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,374.88 : 135,743.64 = 55,928.72 : x
  2. Step 2: Convert to fraction form
    98,374.88/135,743.64 = 55,928.72/x
  3. Step 3: Cross multiply
    98,374.88x = 135,743.64 × 55,928.72
  4. Step 4: Simplify right side
    98,374.88x = 7,591,968,033.34
  5. Step 5: Solve for x
    x = 7,591,968,033.34/98,374.88
  6. Step 6: Final answer
    x = 77,173.85

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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.