Home / 100,484.48-138,682.73-57,473.03

Finding the Fourth Proportional to 100,484.48, 138,682.73 and 57,473.03

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Solution

The fourth proportional to 100,484.48, 138,682.73 and 57,473.03 is: 79,320.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,484.48 : 138,682.73 = 57,473.03 : x
  2. Step 2: Convert to fraction form
    100,484.48/138,682.73 = 57,473.03/x
  3. Step 3: Cross multiply
    100,484.48x = 138,682.73 × 57,473.03
  4. Step 4: Simplify right side
    100,484.48x = 7,970,516,412.07
  5. Step 5: Solve for x
    x = 7,970,516,412.07/100,484.48
  6. Step 6: Final answer
    x = 79,320.87

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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.