Home / 66,019.68-99,022.50-18,633.60

Finding the Fourth Proportional to 66,019.68, 99,022.50 and 18,633.60

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Solution

The fourth proportional to 66,019.68, 99,022.50 and 18,633.60 is: 27,948.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,019.68 : 99,022.50 = 18,633.60 : x
  2. Step 2: Convert to fraction form
    66,019.68/99,022.50 = 18,633.60/x
  3. Step 3: Cross multiply
    66,019.68x = 99,022.50 × 18,633.60
  4. Step 4: Simplify right side
    66,019.68x = 1,845,145,656.00
  5. Step 5: Solve for x
    x = 1,845,145,656.00/66,019.68
  6. Step 6: Final answer
    x = 27,948.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.