Home / 86,551.18-119,440.19-48,308.54

Finding the Fourth Proportional to 86,551.18, 119,440.19 and 48,308.54

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Solution

The fourth proportional to 86,551.18, 119,440.19 and 48,308.54 is: 66,665.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,551.18 : 119,440.19 = 48,308.54 : x
  2. Step 2: Convert to fraction form
    86,551.18/119,440.19 = 48,308.54/x
  3. Step 3: Cross multiply
    86,551.18x = 119,440.19 × 48,308.54
  4. Step 4: Simplify right side
    86,551.18x = 5,769,980,719.79
  5. Step 5: Solve for x
    x = 5,769,980,719.79/86,551.18
  6. Step 6: Final answer
    x = 66,665.54

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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.