Home / 66,449.23-99,683.87-21,455.55

Finding the Fourth Proportional to 66,449.23, 99,683.87 and 21,455.55

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Solution

The fourth proportional to 66,449.23, 99,683.87 and 21,455.55 is: 32,186.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,449.23 : 99,683.87 = 21,455.55 : x
  2. Step 2: Convert to fraction form
    66,449.23/99,683.87 = 21,455.55/x
  3. Step 3: Cross multiply
    66,449.23x = 99,683.87 × 21,455.55
  4. Step 4: Simplify right side
    66,449.23x = 2,138,772,149.70
  5. Step 5: Solve for x
    x = 2,138,772,149.70/66,449.23
  6. Step 6: Final answer
    x = 32,186.56

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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.