Home / 72,275.11-108,350.31-34,783.60

Finding the Fourth Proportional to 72,275.11, 108,350.31 and 34,783.60

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Solution

The fourth proportional to 72,275.11, 108,350.31 and 34,783.60 is: 52,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,275.11 : 108,350.31 = 34,783.60 : x
  2. Step 2: Convert to fraction form
    72,275.11/108,350.31 = 34,783.60/x
  3. Step 3: Cross multiply
    72,275.11x = 108,350.31 × 34,783.60
  4. Step 4: Simplify right side
    72,275.11x = 3,768,814,014.71
  5. Step 5: Solve for x
    x = 3,768,814,014.71/72,275.11
  6. Step 6: Final answer
    x = 52,145.39

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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.