Home / 53,171.12-79,793.50-21,146.91

Finding the Fourth Proportional to 53,171.12, 79,793.50 and 21,146.91

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Solution

The fourth proportional to 53,171.12, 79,793.50 and 21,146.91 is: 31,735.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,171.12 : 79,793.50 = 21,146.91 : x
  2. Step 2: Convert to fraction form
    53,171.12/79,793.50 = 21,146.91/x
  3. Step 3: Cross multiply
    53,171.12x = 79,793.50 × 21,146.91
  4. Step 4: Simplify right side
    53,171.12x = 1,687,385,963.09
  5. Step 5: Solve for x
    x = 1,687,385,963.09/53,171.12
  6. Step 6: Final answer
    x = 31,735.01

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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.