Home / 90,171.50-135,304.38-36,903.02

Finding the Fourth Proportional to 90,171.50, 135,304.38 and 36,903.02

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Solution

The fourth proportional to 90,171.50, 135,304.38 and 36,903.02 is: 55,373.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,171.50 : 135,304.38 = 36,903.02 : x
  2. Step 2: Convert to fraction form
    90,171.50/135,304.38 = 36,903.02/x
  3. Step 3: Cross multiply
    90,171.50x = 135,304.38 × 36,903.02
  4. Step 4: Simplify right side
    90,171.50x = 4,993,139,564.71
  5. Step 5: Solve for x
    x = 4,993,139,564.71/90,171.50
  6. Step 6: Final answer
    x = 55,373.81

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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.