Home / 66,538.63-99,823.67-21,559.91

Finding the Fourth Proportional to 66,538.63, 99,823.67 and 21,559.91

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Solution

The fourth proportional to 66,538.63, 99,823.67 and 21,559.91 is: 32,344.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,538.63 : 99,823.67 = 21,559.91 : x
  2. Step 2: Convert to fraction form
    66,538.63/99,823.67 = 21,559.91/x
  3. Step 3: Cross multiply
    66,538.63x = 99,823.67 × 21,559.91
  4. Step 4: Simplify right side
    66,538.63x = 2,152,188,734.15
  5. Step 5: Solve for x
    x = 2,152,188,734.15/66,538.63
  6. Step 6: Final answer
    x = 32,344.95

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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.