Home / 76,069.76-104,968.20-42,072.85

Finding the Fourth Proportional to 76,069.76, 104,968.20 and 42,072.85

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Solution

The fourth proportional to 76,069.76, 104,968.20 and 42,072.85 is: 58,056.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,069.76 : 104,968.20 = 42,072.85 : x
  2. Step 2: Convert to fraction form
    76,069.76/104,968.20 = 42,072.85/x
  3. Step 3: Cross multiply
    76,069.76x = 104,968.20 × 42,072.85
  4. Step 4: Simplify right side
    76,069.76x = 4,416,311,070.95
  5. Step 5: Solve for x
    x = 4,416,311,070.95/76,069.76
  6. Step 6: Final answer
    x = 58,056.06

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1.5x scale

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.