Home / 57,415.14-79,271.56-51,346.56

Finding the Fourth Proportional to 57,415.14, 79,271.56 and 51,346.56

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Solution

The fourth proportional to 57,415.14, 79,271.56 and 51,346.56 is: 70,892.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,415.14 : 79,271.56 = 51,346.56 : x
  2. Step 2: Convert to fraction form
    57,415.14/79,271.56 = 51,346.56/x
  3. Step 3: Cross multiply
    57,415.14x = 79,271.56 × 51,346.56
  4. Step 4: Simplify right side
    57,415.14x = 4,070,321,911.83
  5. Step 5: Solve for x
    x = 4,070,321,911.83/57,415.14
  6. Step 6: Final answer
    x = 70,892.83

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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.