Home / 97,843.20-135,016.16-55,393.28

Finding the Fourth Proportional to 97,843.20, 135,016.16 and 55,393.28

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Solution

The fourth proportional to 97,843.20, 135,016.16 and 55,393.28 is: 76,438.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,843.20 : 135,016.16 = 55,393.28 : x
  2. Step 2: Convert to fraction form
    97,843.20/135,016.16 = 55,393.28/x
  3. Step 3: Cross multiply
    97,843.20x = 135,016.16 × 55,393.28
  4. Step 4: Simplify right side
    97,843.20x = 7,478,987,955.40
  5. Step 5: Solve for x
    x = 7,478,987,955.40/97,843.20
  6. Step 6: Final answer
    x = 76,438.51

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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.