Home / 80,013.12-110,296.80-53,108.16

Finding the Fourth Proportional to 80,013.12, 110,296.80 and 53,108.16

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Solution

The fourth proportional to 80,013.12, 110,296.80 and 53,108.16 is: 73,208.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,013.12 : 110,296.80 = 53,108.16 : x
  2. Step 2: Convert to fraction form
    80,013.12/110,296.80 = 53,108.16/x
  3. Step 3: Cross multiply
    80,013.12x = 110,296.80 × 53,108.16
  4. Step 4: Simplify right side
    80,013.12x = 5,857,660,101.89
  5. Step 5: Solve for x
    x = 5,857,660,101.89/80,013.12
  6. Step 6: Final answer
    x = 73,208.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.