Home / 80,038.41-120,065.82-35,661.45

Finding the Fourth Proportional to 80,038.41, 120,065.82 and 35,661.45

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Solution

The fourth proportional to 80,038.41, 120,065.82 and 35,661.45 is: 53,495.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,038.41 : 120,065.82 = 35,661.45 : x
  2. Step 2: Convert to fraction form
    80,038.41/120,065.82 = 35,661.45/x
  3. Step 3: Cross multiply
    80,038.41x = 120,065.82 × 35,661.45
  4. Step 4: Simplify right side
    80,038.41x = 4,281,721,236.64
  5. Step 5: Solve for x
    x = 4,281,721,236.64/80,038.41
  6. Step 6: Final answer
    x = 53,495.83

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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.