Home / 66,638.25-100,006.53-31,577.94

Finding the Fourth Proportional to 66,638.25, 100,006.53 and 31,577.94

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Solution

The fourth proportional to 66,638.25, 100,006.53 and 31,577.94 is: 47,390.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,638.25 : 100,006.53 = 31,577.94 : x
  2. Step 2: Convert to fraction form
    66,638.25/100,006.53 = 31,577.94/x
  3. Step 3: Cross multiply
    66,638.25x = 100,006.53 × 31,577.94
  4. Step 4: Simplify right side
    66,638.25x = 3,158,000,203.95
  5. Step 5: Solve for x
    x = 3,158,000,203.95/66,638.25
  6. Step 6: Final answer
    x = 47,390.20

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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.