Home / 86,960.09-130,433.76-27,779.87

Finding the Fourth Proportional to 86,960.09, 130,433.76 and 27,779.87

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Solution

The fourth proportional to 86,960.09, 130,433.76 and 27,779.87 is: 41,667.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,960.09 : 130,433.76 = 27,779.87 : x
  2. Step 2: Convert to fraction form
    86,960.09/130,433.76 = 27,779.87/x
  3. Step 3: Cross multiply
    86,960.09x = 130,433.76 × 27,779.87
  4. Step 4: Simplify right side
    86,960.09x = 3,623,432,896.41
  5. Step 5: Solve for x
    x = 3,623,432,896.41/86,960.09
  6. Step 6: Final answer
    x = 41,667.77

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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.