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Finding the Fourth Proportional to 50,946.80, 71,429.20 and 50,946.80

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Solution

The fourth proportional to 50,946.80, 71,429.20 and 50,946.80 is: 71,429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,946.80 : 71,429.20 = 50,946.80 : x
  2. Step 2: Convert to fraction form
    50,946.80/71,429.20 = 50,946.80/x
  3. Step 3: Cross multiply
    50,946.80x = 71,429.20 × 50,946.80
  4. Step 4: Simplify right side
    50,946.80x = 3,639,089,166.56
  5. Step 5: Solve for x
    x = 3,639,089,166.56/50,946.80
  6. Step 6: Final answer
    x = 71,429.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.