Home / 86,559.35-129,846.47-30,394.64

Finding the Fourth Proportional to 86,559.35, 129,846.47 and 30,394.64

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Solution

The fourth proportional to 86,559.35, 129,846.47 and 30,394.64 is: 45,594.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,559.35 : 129,846.47 = 30,394.64 : x
  2. Step 2: Convert to fraction form
    86,559.35/129,846.47 = 30,394.64/x
  3. Step 3: Cross multiply
    86,559.35x = 129,846.47 × 30,394.64
  4. Step 4: Simplify right side
    86,559.35x = 3,946,635,909.72
  5. Step 5: Solve for x
    x = 3,946,635,909.72/86,559.35
  6. Step 6: Final answer
    x = 45,594.56

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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.