Home / 57,661.90-86,615.75-54,291.18

Finding the Fourth Proportional to 57,661.90, 86,615.75 and 54,291.18

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Solution

The fourth proportional to 57,661.90, 86,615.75 and 54,291.18 is: 81,552.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,661.90 : 86,615.75 = 54,291.18 : x
  2. Step 2: Convert to fraction form
    57,661.90/86,615.75 = 54,291.18/x
  3. Step 3: Cross multiply
    57,661.90x = 86,615.75 × 54,291.18
  4. Step 4: Simplify right side
    57,661.90x = 4,702,471,274.09
  5. Step 5: Solve for x
    x = 4,702,471,274.09/57,661.90
  6. Step 6: Final answer
    x = 81,552.49

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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.