Home / 93,400.21-128,889.52-53,118.37

Finding the Fourth Proportional to 93,400.21, 128,889.52 and 53,118.37

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Solution

The fourth proportional to 93,400.21, 128,889.52 and 53,118.37 is: 73,301.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,400.21 : 128,889.52 = 53,118.37 : x
  2. Step 2: Convert to fraction form
    93,400.21/128,889.52 = 53,118.37/x
  3. Step 3: Cross multiply
    93,400.21x = 128,889.52 × 53,118.37
  4. Step 4: Simplify right side
    93,400.21x = 6,846,401,212.48
  5. Step 5: Solve for x
    x = 6,846,401,212.48/93,400.21
  6. Step 6: Final answer
    x = 73,301.78

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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.