Home / 76,213.00-105,163.41-42,213.05

Finding the Fourth Proportional to 76,213.00, 105,163.41 and 42,213.05

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Solution

The fourth proportional to 76,213.00, 105,163.41 and 42,213.05 is: 58,248.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,213.00 : 105,163.41 = 42,213.05 : x
  2. Step 2: Convert to fraction form
    76,213.00/105,163.41 = 42,213.05/x
  3. Step 3: Cross multiply
    76,213.00x = 105,163.41 × 42,213.05
  4. Step 4: Simplify right side
    76,213.00x = 4,439,268,311.35
  5. Step 5: Solve for x
    x = 4,439,268,311.35/76,213.00
  6. Step 6: Final answer
    x = 58,248.18

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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.