Home / 66,207.06-99,289.50-21,825.54

Finding the Fourth Proportional to 66,207.06, 99,289.50 and 21,825.54

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Solution

The fourth proportional to 66,207.06, 99,289.50 and 21,825.54 is: 32,731.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,207.06 : 99,289.50 = 21,825.54 : x
  2. Step 2: Convert to fraction form
    66,207.06/99,289.50 = 21,825.54/x
  3. Step 3: Cross multiply
    66,207.06x = 99,289.50 × 21,825.54
  4. Step 4: Simplify right side
    66,207.06x = 2,167,046,953.83
  5. Step 5: Solve for x
    x = 2,167,046,953.83/66,207.06
  6. Step 6: Final answer
    x = 32,731.36

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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.