Home / 65,558.21-90,383.23-42,858.18

Finding the Fourth Proportional to 65,558.21, 90,383.23 and 42,858.18

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Solution

The fourth proportional to 65,558.21, 90,383.23 and 42,858.18 is: 59,087.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,558.21 : 90,383.23 = 42,858.18 : x
  2. Step 2: Convert to fraction form
    65,558.21/90,383.23 = 42,858.18/x
  3. Step 3: Cross multiply
    65,558.21x = 90,383.23 × 42,858.18
  4. Step 4: Simplify right side
    65,558.21x = 3,873,660,181.26
  5. Step 5: Solve for x
    x = 3,873,660,181.26/65,558.21
  6. Step 6: Final answer
    x = 59,087.34

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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.