Home / 86,723.64-130,103.82-30,561.48

Finding the Fourth Proportional to 86,723.64, 130,103.82 and 30,561.48

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Solution

The fourth proportional to 86,723.64, 130,103.82 and 30,561.48 is: 45,848.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,723.64 : 130,103.82 = 30,561.48 : x
  2. Step 2: Convert to fraction form
    86,723.64/130,103.82 = 30,561.48/x
  3. Step 3: Cross multiply
    86,723.64x = 130,103.82 × 30,561.48
  4. Step 4: Simplify right side
    86,723.64x = 3,976,165,292.85
  5. Step 5: Solve for x
    x = 3,976,165,292.85/86,723.64
  6. Step 6: Final answer
    x = 45,848.69

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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.