Home / 84,127.28-126,268.68-42,603.44

Finding the Fourth Proportional to 84,127.28, 126,268.68 and 42,603.44

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Solution

The fourth proportional to 84,127.28, 126,268.68 and 42,603.44 is: 63,944.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,127.28 : 126,268.68 = 42,603.44 : x
  2. Step 2: Convert to fraction form
    84,127.28/126,268.68 = 42,603.44/x
  3. Step 3: Cross multiply
    84,127.28x = 126,268.68 × 42,603.44
  4. Step 4: Simplify right side
    84,127.28x = 5,379,480,132.26
  5. Step 5: Solve for x
    x = 5,379,480,132.26/84,127.28
  6. Step 6: Final answer
    x = 63,944.54

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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.