Home / 66,455.32-99,683.34-19,708.60

Finding the Fourth Proportional to 66,455.32, 99,683.34 and 19,708.60

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Solution

The fourth proportional to 66,455.32, 99,683.34 and 19,708.60 is: 29,563.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,455.32 : 99,683.34 = 19,708.60 : x
  2. Step 2: Convert to fraction form
    66,455.32/99,683.34 = 19,708.60/x
  3. Step 3: Cross multiply
    66,455.32x = 99,683.34 × 19,708.60
  4. Step 4: Simplify right side
    66,455.32x = 1,964,619,074.72
  5. Step 5: Solve for x
    x = 1,964,619,074.72/66,455.32
  6. Step 6: Final answer
    x = 29,563.01

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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.