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Finding the Fourth Proportional to 91,641.60, 137,419.26 and 35,508

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Solution

The fourth proportional to 91,641.60, 137,419.26 and 35,508 is: 53,245.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,641.60 : 137,419.26 = 35,508 : x
  2. Step 2: Convert to fraction form
    91,641.60/137,419.26 = 35,508/x
  3. Step 3: Cross multiply
    91,641.60x = 137,419.26 × 35,508
  4. Step 4: Simplify right side
    91,641.60x = 4,879,483,084.08
  5. Step 5: Solve for x
    x = 4,879,483,084.08/91,641.60
  6. Step 6: Final answer
    x = 53,245.28

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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.