Home / 74,880.01-112,453.86-71,869.90

Finding the Fourth Proportional to 74,880.01, 112,453.86 and 71,869.90

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Solution

The fourth proportional to 74,880.01, 112,453.86 and 71,869.90 is: 107,933.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,880.01 : 112,453.86 = 71,869.90 : x
  2. Step 2: Convert to fraction form
    74,880.01/112,453.86 = 71,869.90/x
  3. Step 3: Cross multiply
    74,880.01x = 112,453.86 × 71,869.90
  4. Step 4: Simplify right side
    74,880.01x = 8,082,047,672.81
  5. Step 5: Solve for x
    x = 8,082,047,672.81/74,880.01
  6. Step 6: Final answer
    x = 107,933.31

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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.