Home / 90,277.96-135,513.60-76,407.52

Finding the Fourth Proportional to 90,277.96, 135,513.60 and 76,407.52

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Solution

The fourth proportional to 90,277.96, 135,513.60 and 76,407.52 is: 114,693.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,277.96 : 135,513.60 = 76,407.52 : x
  2. Step 2: Convert to fraction form
    90,277.96/135,513.60 = 76,407.52/x
  3. Step 3: Cross multiply
    90,277.96x = 135,513.60 × 76,407.52
  4. Step 4: Simplify right side
    90,277.96x = 10,354,258,102.27
  5. Step 5: Solve for x
    x = 10,354,258,102.27/90,277.96
  6. Step 6: Final answer
    x = 114,693.09

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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.