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Finding the Fourth Proportional to 44,643.12, 66,964.80 and 19,677.60

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Solution

The fourth proportional to 44,643.12, 66,964.80 and 19,677.60 is: 29,516.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,643.12 : 66,964.80 = 19,677.60 : x
  2. Step 2: Convert to fraction form
    44,643.12/66,964.80 = 19,677.60/x
  3. Step 3: Cross multiply
    44,643.12x = 66,964.80 × 19,677.60
  4. Step 4: Simplify right side
    44,643.12x = 1,317,706,548.48
  5. Step 5: Solve for x
    x = 1,317,706,548.48/44,643.12
  6. Step 6: Final answer
    x = 29,516.45

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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.