Home / 72,023.23-107,961-27,638.07

Finding the Fourth Proportional to 72,023.23, 107,961 and 27,638.07

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Solution

The fourth proportional to 72,023.23, 107,961 and 27,638.07 is: 41,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,023.23 : 107,961 = 27,638.07 : x
  2. Step 2: Convert to fraction form
    72,023.23/107,961 = 27,638.07/x
  3. Step 3: Cross multiply
    72,023.23x = 107,961 × 27,638.07
  4. Step 4: Simplify right side
    72,023.23x = 2,983,833,675.27
  5. Step 5: Solve for x
    x = 2,983,833,675.27/72,023.23
  6. Step 6: Final answer
    x = 41,428.77

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1.5x scale

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.