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Finding the Fourth Proportional to 91,841.58, 137,630.81 and 52,317.08

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Solution

The fourth proportional to 91,841.58, 137,630.81 and 52,317.08 is: 78,400.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,841.58 : 137,630.81 = 52,317.08 : x
  2. Step 2: Convert to fraction form
    91,841.58/137,630.81 = 52,317.08/x
  3. Step 3: Cross multiply
    91,841.58x = 137,630.81 × 52,317.08
  4. Step 4: Simplify right side
    91,841.58x = 7,200,442,097.23
  5. Step 5: Solve for x
    x = 7,200,442,097.23/91,841.58
  6. Step 6: Final answer
    x = 78,400.68

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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.