Home / 70,856.10-106,289.64-28,716.12

Finding the Fourth Proportional to 70,856.10, 106,289.64 and 28,716.12

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Solution

The fourth proportional to 70,856.10, 106,289.64 and 28,716.12 is: 43,076.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,856.10 : 106,289.64 = 28,716.12 : x
  2. Step 2: Convert to fraction form
    70,856.10/106,289.64 = 28,716.12/x
  3. Step 3: Cross multiply
    70,856.10x = 106,289.64 × 28,716.12
  4. Step 4: Simplify right side
    70,856.10x = 3,052,226,057.00
  5. Step 5: Solve for x
    x = 3,052,226,057.00/70,856.10
  6. Step 6: Final answer
    x = 43,076.40

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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.