Home / 66,221.15-99,317.70-21,837.33

Finding the Fourth Proportional to 66,221.15, 99,317.70 and 21,837.33

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Solution

The fourth proportional to 66,221.15, 99,317.70 and 21,837.33 is: 32,751.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,221.15 : 99,317.70 = 21,837.33 : x
  2. Step 2: Convert to fraction form
    66,221.15/99,317.70 = 21,837.33/x
  3. Step 3: Cross multiply
    66,221.15x = 99,317.70 × 21,837.33
  4. Step 4: Simplify right side
    66,221.15x = 2,168,833,389.74
  5. Step 5: Solve for x
    x = 2,168,833,389.74/66,221.15
  6. Step 6: Final answer
    x = 32,751.37

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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.