Home / 85,119.77-117,339.26-54,488.36

Finding the Fourth Proportional to 85,119.77, 117,339.26 and 54,488.36

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Solution

The fourth proportional to 85,119.77, 117,339.26 and 54,488.36 is: 75,113.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,119.77 : 117,339.26 = 54,488.36 : x
  2. Step 2: Convert to fraction form
    85,119.77/117,339.26 = 54,488.36/x
  3. Step 3: Cross multiply
    85,119.77x = 117,339.26 × 54,488.36
  4. Step 4: Simplify right side
    85,119.77x = 6,393,623,841.01
  5. Step 5: Solve for x
    x = 6,393,623,841.01/85,119.77
  6. Step 6: Final answer
    x = 75,113.27

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1.5x scale

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.