Home / 77,740.20-107,271.93-49,049.04

Finding the Fourth Proportional to 77,740.20, 107,271.93 and 49,049.04

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Solution

The fourth proportional to 77,740.20, 107,271.93 and 49,049.04 is: 67,681.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,740.20 : 107,271.93 = 49,049.04 : x
  2. Step 2: Convert to fraction form
    77,740.20/107,271.93 = 49,049.04/x
  3. Step 3: Cross multiply
    77,740.20x = 107,271.93 × 49,049.04
  4. Step 4: Simplify right side
    77,740.20x = 5,261,584,892.35
  5. Step 5: Solve for x
    x = 5,261,584,892.35/77,740.20
  6. Step 6: Final answer
    x = 67,681.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.