Home / 84,238.38-126,322.64-34,284.57

Finding the Fourth Proportional to 84,238.38, 126,322.64 and 34,284.57

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Solution

The fourth proportional to 84,238.38, 126,322.64 and 34,284.57 is: 51,412.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,238.38 : 126,322.64 = 34,284.57 : x
  2. Step 2: Convert to fraction form
    84,238.38/126,322.64 = 34,284.57/x
  3. Step 3: Cross multiply
    84,238.38x = 126,322.64 × 34,284.57
  4. Step 4: Simplify right side
    84,238.38x = 4,330,916,877.10
  5. Step 5: Solve for x
    x = 4,330,916,877.10/84,238.38
  6. Step 6: Final answer
    x = 51,412.63

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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.