Home / 80,917.47-121,390.77-24,756.53

Finding the Fourth Proportional to 80,917.47, 121,390.77 and 24,756.53

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Solution

The fourth proportional to 80,917.47, 121,390.77 and 24,756.53 is: 37,139.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,917.47 : 121,390.77 = 24,756.53 : x
  2. Step 2: Convert to fraction form
    80,917.47/121,390.77 = 24,756.53/x
  3. Step 3: Cross multiply
    80,917.47x = 121,390.77 × 24,756.53
  4. Step 4: Simplify right side
    80,917.47x = 3,005,213,632.27
  5. Step 5: Solve for x
    x = 3,005,213,632.27/80,917.47
  6. Step 6: Final answer
    x = 37,139.24

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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.