Home / 57,713.60-86,570.40-54,257.60

Finding the Fourth Proportional to 57,713.60, 86,570.40 and 54,257.60

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Solution

The fourth proportional to 57,713.60, 86,570.40 and 54,257.60 is: 81,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,713.60 : 86,570.40 = 54,257.60 : x
  2. Step 2: Convert to fraction form
    57,713.60/86,570.40 = 54,257.60/x
  3. Step 3: Cross multiply
    57,713.60x = 86,570.40 × 54,257.60
  4. Step 4: Simplify right side
    57,713.60x = 4,697,102,135.04
  5. Step 5: Solve for x
    x = 4,697,102,135.04/57,713.60
  6. Step 6: Final answer
    x = 81,386.40

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1.5x scale

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.