Home / 52,659.23-78,986.41-13,215.47

Finding the Fourth Proportional to 52,659.23, 78,986.41 and 13,215.47

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Solution

The fourth proportional to 52,659.23, 78,986.41 and 13,215.47 is: 19,822.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,659.23 : 78,986.41 = 13,215.47 : x
  2. Step 2: Convert to fraction form
    52,659.23/78,986.41 = 13,215.47/x
  3. Step 3: Cross multiply
    52,659.23x = 78,986.41 × 13,215.47
  4. Step 4: Simplify right side
    52,659.23x = 1,043,842,103.79
  5. Step 5: Solve for x
    x = 1,043,842,103.79/52,659.23
  6. Step 6: Final answer
    x = 19,822.59

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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.