Home / 53,379.08-80,072.70-18,318.44

Finding the Fourth Proportional to 53,379.08, 80,072.70 and 18,318.44

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Solution

The fourth proportional to 53,379.08, 80,072.70 and 18,318.44 is: 27,479.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,379.08 : 80,072.70 = 18,318.44 : x
  2. Step 2: Convert to fraction form
    53,379.08/80,072.70 = 18,318.44/x
  3. Step 3: Cross multiply
    53,379.08x = 80,072.70 × 18,318.44
  4. Step 4: Simplify right side
    53,379.08x = 1,466,806,950.59
  5. Step 5: Solve for x
    x = 1,466,806,950.59/53,379.08
  6. Step 6: Final answer
    x = 27,479.06

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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.