Home / 86,771.61-119,743.92-48,530.70

Finding the Fourth Proportional to 86,771.61, 119,743.92 and 48,530.70

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Solution

The fourth proportional to 86,771.61, 119,743.92 and 48,530.70 is: 66,971.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,771.61 : 119,743.92 = 48,530.70 : x
  2. Step 2: Convert to fraction form
    86,771.61/119,743.92 = 48,530.70/x
  3. Step 3: Cross multiply
    86,771.61x = 119,743.92 × 48,530.70
  4. Step 4: Simplify right side
    86,771.61x = 5,811,256,258.34
  5. Step 5: Solve for x
    x = 5,811,256,258.34/86,771.61
  6. Step 6: Final answer
    x = 66,971.86

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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.