Home / 47,409.14-71,113.68-14,128.35

Finding the Fourth Proportional to 47,409.14, 71,113.68 and 14,128.35

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Solution

The fourth proportional to 47,409.14, 71,113.68 and 14,128.35 is: 21,192.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,409.14 : 71,113.68 = 14,128.35 : x
  2. Step 2: Convert to fraction form
    47,409.14/71,113.68 = 14,128.35/x
  3. Step 3: Cross multiply
    47,409.14x = 71,113.68 × 14,128.35
  4. Step 4: Simplify right side
    47,409.14x = 1,004,718,960.83
  5. Step 5: Solve for x
    x = 1,004,718,960.83/47,409.14
  6. Step 6: Final answer
    x = 21,192.52

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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.