Home / 84,919.30-116,879.29-74,781.34

Finding the Fourth Proportional to 84,919.30, 116,879.29 and 74,781.34

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Solution

The fourth proportional to 84,919.30, 116,879.29 and 74,781.34 is: 102,925.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,919.30 : 116,879.29 = 74,781.34 : x
  2. Step 2: Convert to fraction form
    84,919.30/116,879.29 = 74,781.34/x
  3. Step 3: Cross multiply
    84,919.30x = 116,879.29 × 74,781.34
  4. Step 4: Simplify right side
    84,919.30x = 8,740,389,924.45
  5. Step 5: Solve for x
    x = 8,740,389,924.45/84,919.30
  6. Step 6: Final answer
    x = 102,925.84

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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.