Home / 101,036.48-139,431.33-55,716.30

Finding the Fourth Proportional to 101,036.48, 139,431.33 and 55,716.30

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Solution

The fourth proportional to 101,036.48, 139,431.33 and 55,716.30 is: 76,889.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,036.48 : 139,431.33 = 55,716.30 : x
  2. Step 2: Convert to fraction form
    101,036.48/139,431.33 = 55,716.30/x
  3. Step 3: Cross multiply
    101,036.48x = 139,431.33 × 55,716.30
  4. Step 4: Simplify right side
    101,036.48x = 7,768,597,811.68
  5. Step 5: Solve for x
    x = 7,768,597,811.68/101,036.48
  6. Step 6: Final answer
    x = 76,889.04

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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.