Home / 72,569.04-100,137.58-40,741.44

Finding the Fourth Proportional to 72,569.04, 100,137.58 and 40,741.44

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Solution

The fourth proportional to 72,569.04, 100,137.58 and 40,741.44 is: 56,218.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,569.04 : 100,137.58 = 40,741.44 : x
  2. Step 2: Convert to fraction form
    72,569.04/100,137.58 = 40,741.44/x
  3. Step 3: Cross multiply
    72,569.04x = 100,137.58 × 40,741.44
  4. Step 4: Simplify right side
    72,569.04x = 4,079,749,207.32
  5. Step 5: Solve for x
    x = 4,079,749,207.32/72,569.04
  6. Step 6: Final answer
    x = 56,218.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.