Home / 53,174.06-79,761.40-13,728.48

Finding the Fourth Proportional to 53,174.06, 79,761.40 and 13,728.48

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Solution

The fourth proportional to 53,174.06, 79,761.40 and 13,728.48 is: 20,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,174.06 : 79,761.40 = 13,728.48 : x
  2. Step 2: Convert to fraction form
    53,174.06/79,761.40 = 13,728.48/x
  3. Step 3: Cross multiply
    53,174.06x = 79,761.40 × 13,728.48
  4. Step 4: Simplify right side
    53,174.06x = 1,095,002,784.67
  5. Step 5: Solve for x
    x = 1,095,002,784.67/53,174.06
  6. Step 6: Final answer
    x = 20,592.80

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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.