Home / 98,209.76-135,523.08-57,914.28

Finding the Fourth Proportional to 98,209.76, 135,523.08 and 57,914.28

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Solution

The fourth proportional to 98,209.76, 135,523.08 and 57,914.28 is: 79,917.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,209.76 : 135,523.08 = 57,914.28 : x
  2. Step 2: Convert to fraction form
    98,209.76/135,523.08 = 57,914.28/x
  3. Step 3: Cross multiply
    98,209.76x = 135,523.08 × 57,914.28
  4. Step 4: Simplify right side
    98,209.76x = 7,848,721,601.58
  5. Step 5: Solve for x
    x = 7,848,721,601.58/98,209.76
  6. Step 6: Final answer
    x = 79,917.94

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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.