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Finding the Fourth Proportional to 66,982.59, 99,994.55 and 64,645.16

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Solution

The fourth proportional to 66,982.59, 99,994.55 and 64,645.16 is: 96,505.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,982.59 : 99,994.55 = 64,645.16 : x
  2. Step 2: Convert to fraction form
    66,982.59/99,994.55 = 64,645.16/x
  3. Step 3: Cross multiply
    66,982.59x = 99,994.55 × 64,645.16
  4. Step 4: Simplify right side
    66,982.59x = 6,464,162,860.68
  5. Step 5: Solve for x
    x = 6,464,162,860.68/66,982.59
  6. Step 6: Final answer
    x = 96,505.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.