Home / 97,031.30-133,899.69-54,009.36

Finding the Fourth Proportional to 97,031.30, 133,899.69 and 54,009.36

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Solution

The fourth proportional to 97,031.30, 133,899.69 and 54,009.36 is: 74,530.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,031.30 : 133,899.69 = 54,009.36 : x
  2. Step 2: Convert to fraction form
    97,031.30/133,899.69 = 54,009.36/x
  3. Step 3: Cross multiply
    97,031.30x = 133,899.69 × 54,009.36
  4. Step 4: Simplify right side
    97,031.30x = 7,231,836,561.10
  5. Step 5: Solve for x
    x = 7,231,836,561.10/97,031.30
  6. Step 6: Final answer
    x = 74,530.97

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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.