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Finding the Fourth Proportional to 86,973.81, 130,477.11 and 27,793.59

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Solution

The fourth proportional to 86,973.81, 130,477.11 and 27,793.59 is: 41,695.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,973.81 : 130,477.11 = 27,793.59 : x
  2. Step 2: Convert to fraction form
    86,973.81/130,477.11 = 27,793.59/x
  3. Step 3: Cross multiply
    86,973.81x = 130,477.11 × 27,793.59
  4. Step 4: Simplify right side
    86,973.81x = 3,626,427,299.72
  5. Step 5: Solve for x
    x = 3,626,427,299.72/86,973.81
  6. Step 6: Final answer
    x = 41,695.62

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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.