Home / 66,538.06-99,822.82-21,559.34

Finding the Fourth Proportional to 66,538.06, 99,822.82 and 21,559.34

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Solution

The fourth proportional to 66,538.06, 99,822.82 and 21,559.34 is: 32,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,538.06 : 99,822.82 = 21,559.34 : x
  2. Step 2: Convert to fraction form
    66,538.06/99,822.82 = 21,559.34/x
  3. Step 3: Cross multiply
    66,538.06x = 99,822.82 × 21,559.34
  4. Step 4: Simplify right side
    66,538.06x = 2,152,113,815.68
  5. Step 5: Solve for x
    x = 2,152,113,815.68/66,538.06
  6. Step 6: Final answer
    x = 32,344.10

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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.