Home / 71,271.96-106,899.75-18,685.62

Finding the Fourth Proportional to 71,271.96, 106,899.75 and 18,685.62

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Solution

The fourth proportional to 71,271.96, 106,899.75 and 18,685.62 is: 28,026.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,271.96 : 106,899.75 = 18,685.62 : x
  2. Step 2: Convert to fraction form
    71,271.96/106,899.75 = 18,685.62/x
  3. Step 3: Cross multiply
    71,271.96x = 106,899.75 × 18,685.62
  4. Step 4: Simplify right side
    71,271.96x = 1,997,488,106.60
  5. Step 5: Solve for x
    x = 1,997,488,106.60/71,271.96
  6. Step 6: Final answer
    x = 28,026.28

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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.