Home / 57,086.83-78,811.48-34,431.56

Finding the Fourth Proportional to 57,086.83, 78,811.48 and 34,431.56

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Solution

The fourth proportional to 57,086.83, 78,811.48 and 34,431.56 is: 47,534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,086.83 : 78,811.48 = 34,431.56 : x
  2. Step 2: Convert to fraction form
    57,086.83/78,811.48 = 34,431.56/x
  3. Step 3: Cross multiply
    57,086.83x = 78,811.48 × 34,431.56
  4. Step 4: Simplify right side
    57,086.83x = 2,713,602,202.31
  5. Step 5: Solve for x
    x = 2,713,602,202.31/57,086.83
  6. Step 6: Final answer
    x = 47,534.65

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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.