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Finding the Fourth Proportional to 50,972.98, 70,340.26 and 28,313.40

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Solution

The fourth proportional to 50,972.98, 70,340.26 and 28,313.40 is: 39,071.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,972.98 : 70,340.26 = 28,313.40 : x
  2. Step 2: Convert to fraction form
    50,972.98/70,340.26 = 28,313.40/x
  3. Step 3: Cross multiply
    50,972.98x = 70,340.26 × 28,313.40
  4. Step 4: Simplify right side
    50,972.98x = 1,991,571,917.48
  5. Step 5: Solve for x
    x = 1,991,571,917.48/50,972.98
  6. Step 6: Final answer
    x = 39,071.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.