Home / 57,200.05-78,889.28-40,260.37

Finding the Fourth Proportional to 57,200.05, 78,889.28 and 40,260.37

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Solution

The fourth proportional to 57,200.05, 78,889.28 and 40,260.37 is: 55,526.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,200.05 : 78,889.28 = 40,260.37 : x
  2. Step 2: Convert to fraction form
    57,200.05/78,889.28 = 40,260.37/x
  3. Step 3: Cross multiply
    57,200.05x = 78,889.28 × 40,260.37
  4. Step 4: Simplify right side
    57,200.05x = 3,176,111,351.23
  5. Step 5: Solve for x
    x = 3,176,111,351.23/57,200.05
  6. Step 6: Final answer
    x = 55,526.37

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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.