Home / 89,788.19-134,734.76-49,840.81

Finding the Fourth Proportional to 89,788.19, 134,734.76 and 49,840.81

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Solution

The fourth proportional to 89,788.19, 134,734.76 and 49,840.81 is: 74,790.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,788.19 : 134,734.76 = 49,840.81 : x
  2. Step 2: Convert to fraction form
    89,788.19/134,734.76 = 49,840.81/x
  3. Step 3: Cross multiply
    89,788.19x = 134,734.76 × 49,840.81
  4. Step 4: Simplify right side
    89,788.19x = 6,715,288,987.51
  5. Step 5: Solve for x
    x = 6,715,288,987.51/89,788.19
  6. Step 6: Final answer
    x = 74,790.34

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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.