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Finding the Fourth Proportional to 66,877.55, 100,317.69 and 19,496.19

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Solution

The fourth proportional to 66,877.55, 100,317.69 and 19,496.19 is: 29,244.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,877.55 : 100,317.69 = 19,496.19 : x
  2. Step 2: Convert to fraction form
    66,877.55/100,317.69 = 19,496.19/x
  3. Step 3: Cross multiply
    66,877.55x = 100,317.69 × 19,496.19
  4. Step 4: Simplify right side
    66,877.55x = 1,955,813,120.79
  5. Step 5: Solve for x
    x = 1,955,813,120.79/66,877.55
  6. Step 6: Final answer
    x = 29,244.69

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1.5x scale

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.