Home / 53,929.56-80,842.08-20,623.98

Finding the Fourth Proportional to 53,929.56, 80,842.08 and 20,623.98

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Solution

The fourth proportional to 53,929.56, 80,842.08 and 20,623.98 is: 30,915.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,929.56 : 80,842.08 = 20,623.98 : x
  2. Step 2: Convert to fraction form
    53,929.56/80,842.08 = 20,623.98/x
  3. Step 3: Cross multiply
    53,929.56x = 80,842.08 × 20,623.98
  4. Step 4: Simplify right side
    53,929.56x = 1,667,285,441.08
  5. Step 5: Solve for x
    x = 1,667,285,441.08/53,929.56
  6. Step 6: Final answer
    x = 30,915.98

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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.