Home / 77,253.48-106,620.60-55,812.61

Finding the Fourth Proportional to 77,253.48, 106,620.60 and 55,812.61

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Solution

The fourth proportional to 77,253.48, 106,620.60 and 55,812.61 is: 77,029.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,253.48 : 106,620.60 = 55,812.61 : x
  2. Step 2: Convert to fraction form
    77,253.48/106,620.60 = 55,812.61/x
  3. Step 3: Cross multiply
    77,253.48x = 106,620.60 × 55,812.61
  4. Step 4: Simplify right side
    77,253.48x = 5,950,774,308.34
  5. Step 5: Solve for x
    x = 5,950,774,308.34/77,253.48
  6. Step 6: Final answer
    x = 77,029.21

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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.