Home / 86,782.67-130,184.27-30,611.06

Finding the Fourth Proportional to 86,782.67, 130,184.27 and 30,611.06

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Solution

The fourth proportional to 86,782.67, 130,184.27 and 30,611.06 is: 45,920.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,782.67 : 130,184.27 = 30,611.06 : x
  2. Step 2: Convert to fraction form
    86,782.67/130,184.27 = 30,611.06/x
  3. Step 3: Cross multiply
    86,782.67x = 130,184.27 × 30,611.06
  4. Step 4: Simplify right side
    86,782.67x = 3,985,078,346.97
  5. Step 5: Solve for x
    x = 3,985,078,346.97/86,782.67
  6. Step 6: Final answer
    x = 45,920.21

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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.