Home / 76,209.21-105,158.75-43,945.02

Finding the Fourth Proportional to 76,209.21, 105,158.75 and 43,945.02

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Solution

The fourth proportional to 76,209.21, 105,158.75 and 43,945.02 is: 60,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,209.21 : 105,158.75 = 43,945.02 : x
  2. Step 2: Convert to fraction form
    76,209.21/105,158.75 = 43,945.02/x
  3. Step 3: Cross multiply
    76,209.21x = 105,158.75 × 43,945.02
  4. Step 4: Simplify right side
    76,209.21x = 4,621,203,371.93
  5. Step 5: Solve for x
    x = 4,621,203,371.93/76,209.21
  6. Step 6: Final answer
    x = 60,638.38

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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.