Home / 80,276.79-120,428.97-26,973.86

Finding the Fourth Proportional to 80,276.79, 120,428.97 and 26,973.86

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Solution

The fourth proportional to 80,276.79, 120,428.97 and 26,973.86 is: 40,465.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,276.79 : 120,428.97 = 26,973.86 : x
  2. Step 2: Convert to fraction form
    80,276.79/120,428.97 = 26,973.86/x
  3. Step 3: Cross multiply
    80,276.79x = 120,428.97 × 26,973.86
  4. Step 4: Simplify right side
    80,276.79x = 3,248,433,574.58
  5. Step 5: Solve for x
    x = 3,248,433,574.58/80,276.79
  6. Step 6: Final answer
    x = 40,465.41

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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.