Home / 77,777.48-107,326.76-45,940.44

Finding the Fourth Proportional to 77,777.48, 107,326.76 and 45,940.44

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Solution

The fourth proportional to 77,777.48, 107,326.76 and 45,940.44 is: 63,394.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,777.48 : 107,326.76 = 45,940.44 : x
  2. Step 2: Convert to fraction form
    77,777.48/107,326.76 = 45,940.44/x
  3. Step 3: Cross multiply
    77,777.48x = 107,326.76 × 45,940.44
  4. Step 4: Simplify right side
    77,777.48x = 4,930,638,578.17
  5. Step 5: Solve for x
    x = 4,930,638,578.17/77,777.48
  6. Step 6: Final answer
    x = 63,394.17

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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.