Home / 84,621.88-126,918.48-39,647.92

Finding the Fourth Proportional to 84,621.88, 126,918.48 and 39,647.92

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Solution

The fourth proportional to 84,621.88, 126,918.48 and 39,647.92 is: 59,465.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,621.88 : 126,918.48 = 39,647.92 : x
  2. Step 2: Convert to fraction form
    84,621.88/126,918.48 = 39,647.92/x
  3. Step 3: Cross multiply
    84,621.88x = 126,918.48 × 39,647.92
  4. Step 4: Simplify right side
    84,621.88x = 5,032,053,741.56
  5. Step 5: Solve for x
    x = 5,032,053,741.56/84,621.88
  6. Step 6: Final answer
    x = 59,465.16

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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.