Home / 77,945.41-107,492.93-51,078.16

Finding the Fourth Proportional to 77,945.41, 107,492.93 and 51,078.16

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Solution

The fourth proportional to 77,945.41, 107,492.93 and 51,078.16 is: 70,440.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,945.41 : 107,492.93 = 51,078.16 : x
  2. Step 2: Convert to fraction form
    77,945.41/107,492.93 = 51,078.16/x
  3. Step 3: Cross multiply
    77,945.41x = 107,492.93 × 51,078.16
  4. Step 4: Simplify right side
    77,945.41x = 5,490,540,553.29
  5. Step 5: Solve for x
    x = 5,490,540,553.29/77,945.41
  6. Step 6: Final answer
    x = 70,440.85

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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.