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Finding the Fourth Proportional to 66,654.64, 99,394.07 and 66,054.57

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Solution

The fourth proportional to 66,654.64, 99,394.07 and 66,054.57 is: 98,499.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,654.64 : 99,394.07 = 66,054.57 : x
  2. Step 2: Convert to fraction form
    66,654.64/99,394.07 = 66,054.57/x
  3. Step 3: Cross multiply
    66,654.64x = 99,394.07 × 66,054.57
  4. Step 4: Simplify right side
    66,654.64x = 6,565,432,554.40
  5. Step 5: Solve for x
    x = 6,565,432,554.40/66,654.64
  6. Step 6: Final answer
    x = 98,499.26

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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.