Home / 77,949.55-107,567.76-49,284.64

Finding the Fourth Proportional to 77,949.55, 107,567.76 and 49,284.64

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Solution

The fourth proportional to 77,949.55, 107,567.76 and 49,284.64 is: 68,011.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,949.55 : 107,567.76 = 49,284.64 : x
  2. Step 2: Convert to fraction form
    77,949.55/107,567.76 = 49,284.64/x
  3. Step 3: Cross multiply
    77,949.55x = 107,567.76 × 49,284.64
  4. Step 4: Simplify right side
    77,949.55x = 5,301,438,327.21
  5. Step 5: Solve for x
    x = 5,301,438,327.21/77,949.55
  6. Step 6: Final answer
    x = 68,011.15

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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.