Home / 97,964-135,201.72-54,955.36

Finding the Fourth Proportional to 97,964, 135,201.72 and 54,955.36

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Solution

The fourth proportional to 97,964, 135,201.72 and 54,955.36 is: 75,844.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,964 : 135,201.72 = 54,955.36 : x
  2. Step 2: Convert to fraction form
    97,964/135,201.72 = 54,955.36/x
  3. Step 3: Cross multiply
    97,964x = 135,201.72 × 54,955.36
  4. Step 4: Simplify right side
    97,964x = 7,430,059,195.22
  5. Step 5: Solve for x
    x = 7,430,059,195.22/97,964
  6. Step 6: Final answer
    x = 75,844.79

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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.