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Finding the Fourth Proportional to 78,958, 118,495.44 and 37,405.12

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Solution

The fourth proportional to 78,958, 118,495.44 and 37,405.12 is: 56,135.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,958 : 118,495.44 = 37,405.12 : x
  2. Step 2: Convert to fraction form
    78,958/118,495.44 = 37,405.12/x
  3. Step 3: Cross multiply
    78,958x = 118,495.44 × 37,405.12
  4. Step 4: Simplify right side
    78,958x = 4,432,336,152.65
  5. Step 5: Solve for x
    x = 4,432,336,152.65/78,958
  6. Step 6: Final answer
    x = 56,135.37

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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.