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Finding the Fourth Proportional to 51,840, 77,771.52 and 19,008

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Solution

The fourth proportional to 51,840, 77,771.52 and 19,008 is: 28,516.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,840 : 77,771.52 = 19,008 : x
  2. Step 2: Convert to fraction form
    51,840/77,771.52 = 19,008/x
  3. Step 3: Cross multiply
    51,840x = 77,771.52 × 19,008
  4. Step 4: Simplify right side
    51,840x = 1,478,281,052.16
  5. Step 5: Solve for x
    x = 1,478,281,052.16/51,840
  6. Step 6: Final answer
    x = 28,516.22

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.