Home / 76,020.12-104,911.20-42,486.12

Finding the Fourth Proportional to 76,020.12, 104,911.20 and 42,486.12

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Solution

The fourth proportional to 76,020.12, 104,911.20 and 42,486.12 is: 58,632.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,020.12 : 104,911.20 = 42,486.12 : x
  2. Step 2: Convert to fraction form
    76,020.12/104,911.20 = 42,486.12/x
  3. Step 3: Cross multiply
    76,020.12x = 104,911.20 × 42,486.12
  4. Step 4: Simplify right side
    76,020.12x = 4,457,269,832.54
  5. Step 5: Solve for x
    x = 4,457,269,832.54/76,020.12
  6. Step 6: Final answer
    x = 58,632.77

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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.