Home / 86,942.55-130,511.03-67,308.15

Finding the Fourth Proportional to 86,942.55, 130,511.03 and 67,308.15

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Solution

The fourth proportional to 86,942.55, 130,511.03 and 67,308.15 is: 101,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,942.55 : 130,511.03 = 67,308.15 : x
  2. Step 2: Convert to fraction form
    86,942.55/130,511.03 = 67,308.15/x
  3. Step 3: Cross multiply
    86,942.55x = 130,511.03 × 67,308.15
  4. Step 4: Simplify right side
    86,942.55x = 8,784,455,647.35
  5. Step 5: Solve for x
    x = 8,784,455,647.35/86,942.55
  6. Step 6: Final answer
    x = 101,037.47

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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.