Home / 51,035.49-70,431.32-28,376.81

Finding the Fourth Proportional to 51,035.49, 70,431.32 and 28,376.81

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Solution

The fourth proportional to 51,035.49, 70,431.32 and 28,376.81 is: 39,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,035.49 : 70,431.32 = 28,376.81 : x
  2. Step 2: Convert to fraction form
    51,035.49/70,431.32 = 28,376.81/x
  3. Step 3: Cross multiply
    51,035.49x = 70,431.32 × 28,376.81
  4. Step 4: Simplify right side
    51,035.49x = 1,998,616,185.69
  5. Step 5: Solve for x
    x = 1,998,616,185.69/51,035.49
  6. Step 6: Final answer
    x = 39,161.30

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1.5x scale

Why These Related Problems?

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