Home / 98,311.19-135,665.42-55,289.52

Finding the Fourth Proportional to 98,311.19, 135,665.42 and 55,289.52

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Solution

The fourth proportional to 98,311.19, 135,665.42 and 55,289.52 is: 76,297.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,311.19 : 135,665.42 = 55,289.52 : x
  2. Step 2: Convert to fraction form
    98,311.19/135,665.42 = 55,289.52/x
  3. Step 3: Cross multiply
    98,311.19x = 135,665.42 × 55,289.52
  4. Step 4: Simplify right side
    98,311.19x = 7,500,875,675.95
  5. Step 5: Solve for x
    x = 7,500,875,675.95/98,311.19
  6. Step 6: Final answer
    x = 76,297.28

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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.