Home / 80,234.67-120,357.47-21,070.24

Finding the Fourth Proportional to 80,234.67, 120,357.47 and 21,070.24

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Solution

The fourth proportional to 80,234.67, 120,357.47 and 21,070.24 is: 31,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,234.67 : 120,357.47 = 21,070.24 : x
  2. Step 2: Convert to fraction form
    80,234.67/120,357.47 = 21,070.24/x
  3. Step 3: Cross multiply
    80,234.67x = 120,357.47 × 21,070.24
  4. Step 4: Simplify right side
    80,234.67x = 2,535,960,673.34
  5. Step 5: Solve for x
    x = 2,535,960,673.34/80,234.67
  6. Step 6: Final answer
    x = 31,606.80

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1.5x scale

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.