Home / 88,383.36-121,971.58-48,099.72

Finding the Fourth Proportional to 88,383.36, 121,971.58 and 48,099.72

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Solution

The fourth proportional to 88,383.36, 121,971.58 and 48,099.72 is: 66,379.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,383.36 : 121,971.58 = 48,099.72 : x
  2. Step 2: Convert to fraction form
    88,383.36/121,971.58 = 48,099.72/x
  3. Step 3: Cross multiply
    88,383.36x = 121,971.58 × 48,099.72
  4. Step 4: Simplify right side
    88,383.36x = 5,866,798,845.96
  5. Step 5: Solve for x
    x = 5,866,798,845.96/88,383.36
  6. Step 6: Final answer
    x = 66,379.00

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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.