Home / 71,164.36-98,205.78-42,885.64

Finding the Fourth Proportional to 71,164.36, 98,205.78 and 42,885.64

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Solution

The fourth proportional to 71,164.36, 98,205.78 and 42,885.64 is: 59,181.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,164.36 : 98,205.78 = 42,885.64 : x
  2. Step 2: Convert to fraction form
    71,164.36/98,205.78 = 42,885.64/x
  3. Step 3: Cross multiply
    71,164.36x = 98,205.78 × 42,885.64
  4. Step 4: Simplify right side
    71,164.36x = 4,211,617,727.00
  5. Step 5: Solve for x
    x = 4,211,617,727.00/71,164.36
  6. Step 6: Final answer
    x = 59,181.56

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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.