Home / 72,999.04-109,418.55-28,577.02

Finding the Fourth Proportional to 72,999.04, 109,418.55 and 28,577.02

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Solution

The fourth proportional to 72,999.04, 109,418.55 and 28,577.02 is: 42,834.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,999.04 : 109,418.55 = 28,577.02 : x
  2. Step 2: Convert to fraction form
    72,999.04/109,418.55 = 28,577.02/x
  3. Step 3: Cross multiply
    72,999.04x = 109,418.55 × 28,577.02
  4. Step 4: Simplify right side
    72,999.04x = 3,126,856,091.72
  5. Step 5: Solve for x
    x = 3,126,856,091.72/72,999.04
  6. Step 6: Final answer
    x = 42,834.21

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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.