Home / 86,296.94-129,476.58-30,145.34

Finding the Fourth Proportional to 86,296.94, 129,476.58 and 30,145.34

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Solution

The fourth proportional to 86,296.94, 129,476.58 and 30,145.34 is: 45,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,296.94 : 129,476.58 = 30,145.34 : x
  2. Step 2: Convert to fraction form
    86,296.94/129,476.58 = 30,145.34/x
  3. Step 3: Cross multiply
    86,296.94x = 129,476.58 × 30,145.34
  4. Step 4: Simplify right side
    86,296.94x = 3,903,115,526.14
  5. Step 5: Solve for x
    x = 3,903,115,526.14/86,296.94
  6. Step 6: Final answer
    x = 45,228.90

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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.