Home / 91,942.16-137,913.72-36,538.32

Finding the Fourth Proportional to 91,942.16, 137,913.72 and 36,538.32

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Solution

The fourth proportional to 91,942.16, 137,913.72 and 36,538.32 is: 54,807.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,942.16 : 137,913.72 = 36,538.32 : x
  2. Step 2: Convert to fraction form
    91,942.16/137,913.72 = 36,538.32/x
  3. Step 3: Cross multiply
    91,942.16x = 137,913.72 × 36,538.32
  4. Step 4: Simplify right side
    91,942.16x = 5,039,135,633.75
  5. Step 5: Solve for x
    x = 5,039,135,633.75/91,942.16
  6. Step 6: Final answer
    x = 54,807.67

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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.