Home / 98,072.37-135,342.50-55,637.28

Finding the Fourth Proportional to 98,072.37, 135,342.50 and 55,637.28

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Solution

The fourth proportional to 98,072.37, 135,342.50 and 55,637.28 is: 76,780.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,072.37 : 135,342.50 = 55,637.28 : x
  2. Step 2: Convert to fraction form
    98,072.37/135,342.50 = 55,637.28/x
  3. Step 3: Cross multiply
    98,072.37x = 135,342.50 × 55,637.28
  4. Step 4: Simplify right side
    98,072.37x = 7,530,088,290.21
  5. Step 5: Solve for x
    x = 7,530,088,290.21/98,072.37
  6. Step 6: Final answer
    x = 76,780.94

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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.