Home / 80,268.86-120,328.81-29,639.93

Finding the Fourth Proportional to 80,268.86, 120,328.81 and 29,639.93

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Solution

The fourth proportional to 80,268.86, 120,328.81 and 29,639.93 is: 44,432.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,268.86 : 120,328.81 = 29,639.93 : x
  2. Step 2: Convert to fraction form
    80,268.86/120,328.81 = 29,639.93/x
  3. Step 3: Cross multiply
    80,268.86x = 120,328.81 × 29,639.93
  4. Step 4: Simplify right side
    80,268.86x = 3,566,536,829.64
  5. Step 5: Solve for x
    x = 3,566,536,829.64/80,268.86
  6. Step 6: Final answer
    x = 44,432.38

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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.