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Finding the Fourth Proportional to 66,461.40, 99,690.48 and 27,008.73

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Solution

The fourth proportional to 66,461.40, 99,690.48 and 27,008.73 is: 40,512.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,461.40 : 99,690.48 = 27,008.73 : x
  2. Step 2: Convert to fraction form
    66,461.40/99,690.48 = 27,008.73/x
  3. Step 3: Cross multiply
    66,461.40x = 99,690.48 × 27,008.73
  4. Step 4: Simplify right side
    66,461.40x = 2,692,513,257.89
  5. Step 5: Solve for x
    x = 2,692,513,257.89/66,461.40
  6. Step 6: Final answer
    x = 40,512.44

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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.