Home / 58,788.37-81,129.41-31,930.57

Finding the Fourth Proportional to 58,788.37, 81,129.41 and 31,930.57

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Solution

The fourth proportional to 58,788.37, 81,129.41 and 31,930.57 is: 44,064.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,788.37 : 81,129.41 = 31,930.57 : x
  2. Step 2: Convert to fraction form
    58,788.37/81,129.41 = 31,930.57/x
  3. Step 3: Cross multiply
    58,788.37x = 81,129.41 × 31,930.57
  4. Step 4: Simplify right side
    58,788.37x = 2,590,508,305.06
  5. Step 5: Solve for x
    x = 2,590,508,305.06/58,788.37
  6. Step 6: Final answer
    x = 44,064.98

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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.