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Finding the Fourth Proportional to 66,657.68, 100,028.28 and 35,513.36

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Solution

The fourth proportional to 66,657.68, 100,028.28 and 35,513.36 is: 53,292.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,657.68 : 100,028.28 = 35,513.36 : x
  2. Step 2: Convert to fraction form
    66,657.68/100,028.28 = 35,513.36/x
  3. Step 3: Cross multiply
    66,657.68x = 100,028.28 × 35,513.36
  4. Step 4: Simplify right side
    66,657.68x = 3,552,340,317.82
  5. Step 5: Solve for x
    x = 3,552,340,317.82/66,657.68
  6. Step 6: Final answer
    x = 53,292.29

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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.