Home / 77,881.08-107,459.76-49,576.44

Finding the Fourth Proportional to 77,881.08, 107,459.76 and 49,576.44

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Solution

The fourth proportional to 77,881.08, 107,459.76 and 49,576.44 is: 68,405.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,881.08 : 107,459.76 = 49,576.44 : x
  2. Step 2: Convert to fraction form
    77,881.08/107,459.76 = 49,576.44/x
  3. Step 3: Cross multiply
    77,881.08x = 107,459.76 × 49,576.44
  4. Step 4: Simplify right side
    77,881.08x = 5,327,472,344.05
  5. Step 5: Solve for x
    x = 5,327,472,344.05/77,881.08
  6. Step 6: Final answer
    x = 68,405.22

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1.5x scale

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.