Home / 86,330.84-129,511.44-35,729.72

Finding the Fourth Proportional to 86,330.84, 129,511.44 and 35,729.72

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Solution

The fourth proportional to 86,330.84, 129,511.44 and 35,729.72 is: 53,600.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,330.84 : 129,511.44 = 35,729.72 : x
  2. Step 2: Convert to fraction form
    86,330.84/129,511.44 = 35,729.72/x
  3. Step 3: Cross multiply
    86,330.84x = 129,511.44 × 35,729.72
  4. Step 4: Simplify right side
    86,330.84x = 4,627,407,488.00
  5. Step 5: Solve for x
    x = 4,627,407,488.00/86,330.84
  6. Step 6: Final answer
    x = 53,600.86

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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.