Home / 71,066.03-106,636.10-28,977.21

Finding the Fourth Proportional to 71,066.03, 106,636.10 and 28,977.21

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Solution

The fourth proportional to 71,066.03, 106,636.10 and 28,977.21 is: 43,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,066.03 : 106,636.10 = 28,977.21 : x
  2. Step 2: Convert to fraction form
    71,066.03/106,636.10 = 28,977.21/x
  3. Step 3: Cross multiply
    71,066.03x = 106,636.10 × 28,977.21
  4. Step 4: Simplify right side
    71,066.03x = 3,090,016,518.39
  5. Step 5: Solve for x
    x = 3,090,016,518.39/71,066.03
  6. Step 6: Final answer
    x = 43,480.93

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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.