Home / 77,160.09-115,739.31-58,554.39

Finding the Fourth Proportional to 77,160.09, 115,739.31 and 58,554.39

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Solution

The fourth proportional to 77,160.09, 115,739.31 and 58,554.39 is: 87,830.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,160.09 : 115,739.31 = 58,554.39 : x
  2. Step 2: Convert to fraction form
    77,160.09/115,739.31 = 58,554.39/x
  3. Step 3: Cross multiply
    77,160.09x = 115,739.31 × 58,554.39
  4. Step 4: Simplify right side
    77,160.09x = 6,777,044,696.07
  5. Step 5: Solve for x
    x = 6,777,044,696.07/77,160.09
  6. Step 6: Final answer
    x = 87,830.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.