Home / 66,638.04-99,907.80-31,536.60

Finding the Fourth Proportional to 66,638.04, 99,907.80 and 31,536.60

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Solution

The fourth proportional to 66,638.04, 99,907.80 and 31,536.60 is: 47,281.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,638.04 : 99,907.80 = 31,536.60 : x
  2. Step 2: Convert to fraction form
    66,638.04/99,907.80 = 31,536.60/x
  3. Step 3: Cross multiply
    66,638.04x = 99,907.80 × 31,536.60
  4. Step 4: Simplify right side
    66,638.04x = 3,150,752,325.48
  5. Step 5: Solve for x
    x = 3,150,752,325.48/66,638.04
  6. Step 6: Final answer
    x = 47,281.59

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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.