Home / 66,112.55-99,181.40-21,752.09

Finding the Fourth Proportional to 66,112.55, 99,181.40 and 21,752.09

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Solution

The fourth proportional to 66,112.55, 99,181.40 and 21,752.09 is: 32,632.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,112.55 : 99,181.40 = 21,752.09 : x
  2. Step 2: Convert to fraction form
    66,112.55/99,181.40 = 21,752.09/x
  3. Step 3: Cross multiply
    66,112.55x = 99,181.40 × 21,752.09
  4. Step 4: Simplify right side
    66,112.55x = 2,157,402,739.13
  5. Step 5: Solve for x
    x = 2,157,402,739.13/66,112.55
  6. Step 6: Final answer
    x = 32,632.27

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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.