Home / 85,205.52-127,828.44-38,458.08

Finding the Fourth Proportional to 85,205.52, 127,828.44 and 38,458.08

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Solution

The fourth proportional to 85,205.52, 127,828.44 and 38,458.08 is: 57,696.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,205.52 : 127,828.44 = 38,458.08 : x
  2. Step 2: Convert to fraction form
    85,205.52/127,828.44 = 38,458.08/x
  3. Step 3: Cross multiply
    85,205.52x = 127,828.44 × 38,458.08
  4. Step 4: Simplify right side
    85,205.52x = 4,916,036,371.80
  5. Step 5: Solve for x
    x = 4,916,036,371.80/85,205.52
  6. Step 6: Final answer
    x = 57,696.22

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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.