Home / 90,665.04-135,844.02-55,531.29

Finding the Fourth Proportional to 90,665.04, 135,844.02 and 55,531.29

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Solution

The fourth proportional to 90,665.04, 135,844.02 and 55,531.29 is: 83,202.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,665.04 : 135,844.02 = 55,531.29 : x
  2. Step 2: Convert to fraction form
    90,665.04/135,844.02 = 55,531.29/x
  3. Step 3: Cross multiply
    90,665.04x = 135,844.02 × 55,531.29
  4. Step 4: Simplify right side
    90,665.04x = 7,543,593,669.39
  5. Step 5: Solve for x
    x = 7,543,593,669.39/90,665.04
  6. Step 6: Final answer
    x = 83,202.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.