Home / 76,911.10-106,137.14-42,917.50

Finding the Fourth Proportional to 76,911.10, 106,137.14 and 42,917.50

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Solution

The fourth proportional to 76,911.10, 106,137.14 and 42,917.50 is: 59,226.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,911.10 : 106,137.14 = 42,917.50 : x
  2. Step 2: Convert to fraction form
    76,911.10/106,137.14 = 42,917.50/x
  3. Step 3: Cross multiply
    76,911.10x = 106,137.14 × 42,917.50
  4. Step 4: Simplify right side
    76,911.10x = 4,555,140,705.95
  5. Step 5: Solve for x
    x = 4,555,140,705.95/76,911.10
  6. Step 6: Final answer
    x = 59,226.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.