Home / 91,639.35-137,415.89-35,505.75

Finding the Fourth Proportional to 91,639.35, 137,415.89 and 35,505.75

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Solution

The fourth proportional to 91,639.35, 137,415.89 and 35,505.75 is: 53,241.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,639.35 : 137,415.89 = 35,505.75 : x
  2. Step 2: Convert to fraction form
    91,639.35/137,415.89 = 35,505.75/x
  3. Step 3: Cross multiply
    91,639.35x = 137,415.89 × 35,505.75
  4. Step 4: Simplify right side
    91,639.35x = 4,879,054,058.84
  5. Step 5: Solve for x
    x = 4,879,054,058.84/91,639.35
  6. Step 6: Final answer
    x = 53,241.91

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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.