Home / 79,439.40-109,627.02-43,629.84

Finding the Fourth Proportional to 79,439.40, 109,627.02 and 43,629.84

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Solution

The fourth proportional to 79,439.40, 109,627.02 and 43,629.84 is: 60,209.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,439.40 : 109,627.02 = 43,629.84 : x
  2. Step 2: Convert to fraction form
    79,439.40/109,627.02 = 43,629.84/x
  3. Step 3: Cross multiply
    79,439.40x = 109,627.02 × 43,629.84
  4. Step 4: Simplify right side
    79,439.40x = 4,783,009,342.28
  5. Step 5: Solve for x
    x = 4,783,009,342.28/79,439.40
  6. Step 6: Final answer
    x = 60,209.54

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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.