Home / 71,440.10-107,164.61-18,849.64

Finding the Fourth Proportional to 71,440.10, 107,164.61 and 18,849.64

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Solution

The fourth proportional to 71,440.10, 107,164.61 and 18,849.64 is: 28,275.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,440.10 : 107,164.61 = 18,849.64 : x
  2. Step 2: Convert to fraction form
    71,440.10/107,164.61 = 18,849.64/x
  3. Step 3: Cross multiply
    71,440.10x = 107,164.61 × 18,849.64
  4. Step 4: Simplify right side
    71,440.10x = 2,020,014,319.24
  5. Step 5: Solve for x
    x = 2,020,014,319.24/71,440.10
  6. Step 6: Final answer
    x = 28,275.64

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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.