Home / 71,623.26-107,426.40-19,036.80

Finding the Fourth Proportional to 71,623.26, 107,426.40 and 19,036.80

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Solution

The fourth proportional to 71,623.26, 107,426.40 and 19,036.80 is: 28,552.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,623.26 : 107,426.40 = 19,036.80 : x
  2. Step 2: Convert to fraction form
    71,623.26/107,426.40 = 19,036.80/x
  3. Step 3: Cross multiply
    71,623.26x = 107,426.40 × 19,036.80
  4. Step 4: Simplify right side
    71,623.26x = 2,045,054,891.52
  5. Step 5: Solve for x
    x = 2,045,054,891.52/71,623.26
  6. Step 6: Final answer
    x = 28,552.94

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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.