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Finding the Fourth Proportional to 72,756.96, 100,386.72 and 44,452.32

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Solution

The fourth proportional to 72,756.96, 100,386.72 and 44,452.32 is: 61,333.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,756.96 : 100,386.72 = 44,452.32 : x
  2. Step 2: Convert to fraction form
    72,756.96/100,386.72 = 44,452.32/x
  3. Step 3: Cross multiply
    72,756.96x = 100,386.72 × 44,452.32
  4. Step 4: Simplify right side
    72,756.96x = 4,462,422,601.19
  5. Step 5: Solve for x
    x = 4,462,422,601.19/72,756.96
  6. Step 6: Final answer
    x = 61,333.27

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