Home / 69,698.28-96,189.48-39,493.20

Finding the Fourth Proportional to 69,698.28, 96,189.48 and 39,493.20

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Solution

The fourth proportional to 69,698.28, 96,189.48 and 39,493.20 is: 54,503.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,698.28 : 96,189.48 = 39,493.20 : x
  2. Step 2: Convert to fraction form
    69,698.28/96,189.48 = 39,493.20/x
  3. Step 3: Cross multiply
    69,698.28x = 96,189.48 × 39,493.20
  4. Step 4: Simplify right side
    69,698.28x = 3,798,830,371.54
  5. Step 5: Solve for x
    x = 3,798,830,371.54/69,698.28
  6. Step 6: Final answer
    x = 54,503.93

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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.