Home / 89,078.64-122,898-50,810.70

Finding the Fourth Proportional to 89,078.64, 122,898 and 50,810.70

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Solution

The fourth proportional to 89,078.64, 122,898 and 50,810.70 is: 70,101.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,078.64 : 122,898 = 50,810.70 : x
  2. Step 2: Convert to fraction form
    89,078.64/122,898 = 50,810.70/x
  3. Step 3: Cross multiply
    89,078.64x = 122,898 × 50,810.70
  4. Step 4: Simplify right side
    89,078.64x = 6,244,533,408.60
  5. Step 5: Solve for x
    x = 6,244,533,408.60/89,078.64
  6. Step 6: Final answer
    x = 70,101.36

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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.