Home / 88,419.51-122,028.23-77,416.85

Finding the Fourth Proportional to 88,419.51, 122,028.23 and 77,416.85

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Solution

The fourth proportional to 88,419.51, 122,028.23 and 77,416.85 is: 106,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,419.51 : 122,028.23 = 77,416.85 : x
  2. Step 2: Convert to fraction form
    88,419.51/122,028.23 = 77,416.85/x
  3. Step 3: Cross multiply
    88,419.51x = 122,028.23 × 77,416.85
  4. Step 4: Simplify right side
    88,419.51x = 9,447,041,177.68
  5. Step 5: Solve for x
    x = 9,447,041,177.68/88,419.51
  6. Step 6: Final answer
    x = 106,843.40

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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.