Home / 76,637.56-105,699.82-49,788.66

Finding the Fourth Proportional to 76,637.56, 105,699.82 and 49,788.66

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Solution

The fourth proportional to 76,637.56, 105,699.82 and 49,788.66 is: 68,669.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,637.56 : 105,699.82 = 49,788.66 : x
  2. Step 2: Convert to fraction form
    76,637.56/105,699.82 = 49,788.66/x
  3. Step 3: Cross multiply
    76,637.56x = 105,699.82 × 49,788.66
  4. Step 4: Simplify right side
    76,637.56x = 5,262,652,400.04
  5. Step 5: Solve for x
    x = 5,262,652,400.04/76,637.56
  6. Step 6: Final answer
    x = 68,669.36

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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.