Home / 72,944.06-109,415.76-28,539.51

Finding the Fourth Proportional to 72,944.06, 109,415.76 and 28,539.51

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Solution

The fourth proportional to 72,944.06, 109,415.76 and 28,539.51 is: 42,809.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,944.06 : 109,415.76 = 28,539.51 : x
  2. Step 2: Convert to fraction form
    72,944.06/109,415.76 = 28,539.51/x
  3. Step 3: Cross multiply
    72,944.06x = 109,415.76 × 28,539.51
  4. Step 4: Simplify right side
    72,944.06x = 3,122,672,176.68
  5. Step 5: Solve for x
    x = 3,122,672,176.68/72,944.06
  6. Step 6: Final answer
    x = 42,809.14

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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.