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Finding the Fourth Proportional to 44,415.20, 66,613.20 and 19,455.20

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Solution

The fourth proportional to 44,415.20, 66,613.20 and 19,455.20 is: 29,178.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,415.20 : 66,613.20 = 19,455.20 : x
  2. Step 2: Convert to fraction form
    44,415.20/66,613.20 = 19,455.20/x
  3. Step 3: Cross multiply
    44,415.20x = 66,613.20 × 19,455.20
  4. Step 4: Simplify right side
    44,415.20x = 1,295,973,128.64
  5. Step 5: Solve for x
    x = 1,295,973,128.64/44,415.20
  6. Step 6: Final answer
    x = 29,178.59

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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.