Home / 86,599.38-129,751.20-47,085.96

Finding the Fourth Proportional to 86,599.38, 129,751.20 and 47,085.96

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Solution

The fourth proportional to 86,599.38, 129,751.20 and 47,085.96 is: 70,548.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,599.38 : 129,751.20 = 47,085.96 : x
  2. Step 2: Convert to fraction form
    86,599.38/129,751.20 = 47,085.96/x
  3. Step 3: Cross multiply
    86,599.38x = 129,751.20 × 47,085.96
  4. Step 4: Simplify right side
    86,599.38x = 6,109,459,813.15
  5. Step 5: Solve for x
    x = 6,109,459,813.15/86,599.38
  6. Step 6: Final answer
    x = 70,548.54

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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.