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Finding the Fourth Proportional to 76,273.60, 114,442.80 and 36,810.40

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Solution

The fourth proportional to 76,273.60, 114,442.80 and 36,810.40 is: 55,231.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,273.60 : 114,442.80 = 36,810.40 : x
  2. Step 2: Convert to fraction form
    76,273.60/114,442.80 = 36,810.40/x
  3. Step 3: Cross multiply
    76,273.60x = 114,442.80 × 36,810.40
  4. Step 4: Simplify right side
    76,273.60x = 4,212,685,245.12
  5. Step 5: Solve for x
    x = 4,212,685,245.12/76,273.60
  6. Step 6: Final answer
    x = 55,231.24

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1.5x scale

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.