Home / 53,257.55-79,908.88-19,972.78

Finding the Fourth Proportional to 53,257.55, 79,908.88 and 19,972.78

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Solution

The fourth proportional to 53,257.55, 79,908.88 and 19,972.78 is: 29,967.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,257.55 : 79,908.88 = 19,972.78 : x
  2. Step 2: Convert to fraction form
    53,257.55/79,908.88 = 19,972.78/x
  3. Step 3: Cross multiply
    53,257.55x = 79,908.88 × 19,972.78
  4. Step 4: Simplify right side
    53,257.55x = 1,596,002,268.03
  5. Step 5: Solve for x
    x = 1,596,002,268.03/53,257.55
  6. Step 6: Final answer
    x = 29,967.62

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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.