Home / 90,551.30-135,796.19-31,373.16

Finding the Fourth Proportional to 90,551.30, 135,796.19 and 31,373.16

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Solution

The fourth proportional to 90,551.30, 135,796.19 and 31,373.16 is: 47,049.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,551.30 : 135,796.19 = 31,373.16 : x
  2. Step 2: Convert to fraction form
    90,551.30/135,796.19 = 31,373.16/x
  3. Step 3: Cross multiply
    90,551.30x = 135,796.19 × 31,373.16
  4. Step 4: Simplify right side
    90,551.30x = 4,260,355,674.69
  5. Step 5: Solve for x
    x = 4,260,355,674.69/90,551.30
  6. Step 6: Final answer
    x = 47,049.08

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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.