Home / 84,351.22-116,325.12-54,145.78

Finding the Fourth Proportional to 84,351.22, 116,325.12 and 54,145.78

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Solution

The fourth proportional to 84,351.22, 116,325.12 and 54,145.78 is: 74,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,351.22 : 116,325.12 = 54,145.78 : x
  2. Step 2: Convert to fraction form
    84,351.22/116,325.12 = 54,145.78/x
  3. Step 3: Cross multiply
    84,351.22x = 116,325.12 × 54,145.78
  4. Step 4: Simplify right side
    84,351.22x = 6,298,514,355.99
  5. Step 5: Solve for x
    x = 6,298,514,355.99/84,351.22
  6. Step 6: Final answer
    x = 74,670.10

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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.