Home / 80,321.12-120,317.52-37,565.36

Finding the Fourth Proportional to 80,321.12, 120,317.52 and 37,565.36

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Solution

The fourth proportional to 80,321.12, 120,317.52 and 37,565.36 is: 56,271.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,321.12 : 120,317.52 = 37,565.36 : x
  2. Step 2: Convert to fraction form
    80,321.12/120,317.52 = 37,565.36/x
  3. Step 3: Cross multiply
    80,321.12x = 120,317.52 × 37,565.36
  4. Step 4: Simplify right side
    80,321.12x = 4,519,770,953.11
  5. Step 5: Solve for x
    x = 4,519,770,953.11/80,321.12
  6. Step 6: Final answer
    x = 56,271.26

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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.