Home / 72,860.40-109,287.72-26,109.36

Finding the Fourth Proportional to 72,860.40, 109,287.72 and 26,109.36

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Solution

The fourth proportional to 72,860.40, 109,287.72 and 26,109.36 is: 39,163.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,860.40 : 109,287.72 = 26,109.36 : x
  2. Step 2: Convert to fraction form
    72,860.40/109,287.72 = 26,109.36/x
  3. Step 3: Cross multiply
    72,860.40x = 109,287.72 × 26,109.36
  4. Step 4: Simplify right side
    72,860.40x = 2,853,432,425.06
  5. Step 5: Solve for x
    x = 2,853,432,425.06/72,860.40
  6. Step 6: Final answer
    x = 39,163.01

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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.