Home / 86,209.72-129,314.30-23,880.04

Finding the Fourth Proportional to 86,209.72, 129,314.30 and 23,880.04

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Solution

The fourth proportional to 86,209.72, 129,314.30 and 23,880.04 is: 35,819.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,209.72 : 129,314.30 = 23,880.04 : x
  2. Step 2: Convert to fraction form
    86,209.72/129,314.30 = 23,880.04/x
  3. Step 3: Cross multiply
    86,209.72x = 129,314.30 × 23,880.04
  4. Step 4: Simplify right side
    86,209.72x = 3,088,030,656.57
  5. Step 5: Solve for x
    x = 3,088,030,656.57/86,209.72
  6. Step 6: Final answer
    x = 35,819.98

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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.