Home / 86,265.83-129,357.72-30,099.14

Finding the Fourth Proportional to 86,265.83, 129,357.72 and 30,099.14

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Solution

The fourth proportional to 86,265.83, 129,357.72 and 30,099.14 is: 45,134.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,265.83 : 129,357.72 = 30,099.14 : x
  2. Step 2: Convert to fraction form
    86,265.83/129,357.72 = 30,099.14/x
  3. Step 3: Cross multiply
    86,265.83x = 129,357.72 × 30,099.14
  4. Step 4: Simplify right side
    86,265.83x = 3,893,555,477.57
  5. Step 5: Solve for x
    x = 3,893,555,477.57/86,265.83
  6. Step 6: Final answer
    x = 45,134.39

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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.