Home / 57,867.20-86,986.40-53,758.40

Finding the Fourth Proportional to 57,867.20, 86,986.40 and 53,758.40

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Solution

The fourth proportional to 57,867.20, 86,986.40 and 53,758.40 is: 80,810.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,867.20 : 86,986.40 = 53,758.40 : x
  2. Step 2: Convert to fraction form
    57,867.20/86,986.40 = 53,758.40/x
  3. Step 3: Cross multiply
    57,867.20x = 86,986.40 × 53,758.40
  4. Step 4: Simplify right side
    57,867.20x = 4,676,249,685.76
  5. Step 5: Solve for x
    x = 4,676,249,685.76/57,867.20
  6. Step 6: Final answer
    x = 80,810.02

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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.