Home / 66,055.20-99,094.80-21,669.60

Finding the Fourth Proportional to 66,055.20, 99,094.80 and 21,669.60

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Solution

The fourth proportional to 66,055.20, 99,094.80 and 21,669.60 is: 32,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,055.20 : 99,094.80 = 21,669.60 : x
  2. Step 2: Convert to fraction form
    66,055.20/99,094.80 = 21,669.60/x
  3. Step 3: Cross multiply
    66,055.20x = 99,094.80 × 21,669.60
  4. Step 4: Simplify right side
    66,055.20x = 2,147,344,678.08
  5. Step 5: Solve for x
    x = 2,147,344,678.08/66,055.20
  6. Step 6: Final answer
    x = 32,508.34

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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.