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Finding the Fourth Proportional to 80,493.60, 120,643.20 and 41,030.40

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Solution

The fourth proportional to 80,493.60, 120,643.20 and 41,030.40 is: 61,496.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,493.60 : 120,643.20 = 41,030.40 : x
  2. Step 2: Convert to fraction form
    80,493.60/120,643.20 = 41,030.40/x
  3. Step 3: Cross multiply
    80,493.60x = 120,643.20 × 41,030.40
  4. Step 4: Simplify right side
    80,493.60x = 4,950,038,753.28
  5. Step 5: Solve for x
    x = 4,950,038,753.28/80,493.60
  6. Step 6: Final answer
    x = 61,496.05

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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.