Home / 91,705.32-137,570.22-36,288.36

Finding the Fourth Proportional to 91,705.32, 137,570.22 and 36,288.36

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Solution

The fourth proportional to 91,705.32, 137,570.22 and 36,288.36 is: 54,437.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,705.32 : 137,570.22 = 36,288.36 : x
  2. Step 2: Convert to fraction form
    91,705.32/137,570.22 = 36,288.36/x
  3. Step 3: Cross multiply
    91,705.32x = 137,570.22 × 36,288.36
  4. Step 4: Simplify right side
    91,705.32x = 4,992,197,668.64
  5. Step 5: Solve for x
    x = 4,992,197,668.64/91,705.32
  6. Step 6: Final answer
    x = 54,437.38

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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.