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Finding the Fourth Proportional to 66,802.08, 100,218.48 and 20,055.84

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Solution

The fourth proportional to 66,802.08, 100,218.48 and 20,055.84 is: 30,088.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,802.08 : 100,218.48 = 20,055.84 : x
  2. Step 2: Convert to fraction form
    66,802.08/100,218.48 = 20,055.84/x
  3. Step 3: Cross multiply
    66,802.08x = 100,218.48 × 20,055.84
  4. Step 4: Simplify right side
    66,802.08x = 2,009,965,799.92
  5. Step 5: Solve for x
    x = 2,009,965,799.92/66,802.08
  6. Step 6: Final answer
    x = 30,088.37

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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.