Home / 86,615.40-119,525.82-54,367.20

Finding the Fourth Proportional to 86,615.40, 119,525.82 and 54,367.20

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Solution

The fourth proportional to 86,615.40, 119,525.82 and 54,367.20 is: 75,024.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,615.40 : 119,525.82 = 54,367.20 : x
  2. Step 2: Convert to fraction form
    86,615.40/119,525.82 = 54,367.20/x
  3. Step 3: Cross multiply
    86,615.40x = 119,525.82 × 54,367.20
  4. Step 4: Simplify right side
    86,615.40x = 6,498,284,161.10
  5. Step 5: Solve for x
    x = 6,498,284,161.10/86,615.40
  6. Step 6: Final answer
    x = 75,024.58

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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.