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Finding the Fourth Proportional to 66,254.60, 99,353.10 and 19,497.80

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Solution

The fourth proportional to 66,254.60, 99,353.10 and 19,497.80 is: 29,238.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,254.60 : 99,353.10 = 19,497.80 : x
  2. Step 2: Convert to fraction form
    66,254.60/99,353.10 = 19,497.80/x
  3. Step 3: Cross multiply
    66,254.60x = 99,353.10 × 19,497.80
  4. Step 4: Simplify right side
    66,254.60x = 1,937,166,873.18
  5. Step 5: Solve for x
    x = 1,937,166,873.18/66,254.60
  6. Step 6: Final answer
    x = 29,238.22

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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.