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Finding the Fourth Proportional to 99,241.73, 136,953 and 53,919.35

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Solution

The fourth proportional to 99,241.73, 136,953 and 53,919.35 is: 74,408.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,241.73 : 136,953 = 53,919.35 : x
  2. Step 2: Convert to fraction form
    99,241.73/136,953 = 53,919.35/x
  3. Step 3: Cross multiply
    99,241.73x = 136,953 × 53,919.35
  4. Step 4: Simplify right side
    99,241.73x = 7,384,416,055.79
  5. Step 5: Solve for x
    x = 7,384,416,055.79/99,241.73
  6. Step 6: Final answer
    x = 74,408.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.