Home / 84,351.12-116,416.12-48,540.40

Finding the Fourth Proportional to 84,351.12, 116,416.12 and 48,540.40

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Solution

The fourth proportional to 84,351.12, 116,416.12 and 48,540.40 is: 66,992.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,351.12 : 116,416.12 = 48,540.40 : x
  2. Step 2: Convert to fraction form
    84,351.12/116,416.12 = 48,540.40/x
  3. Step 3: Cross multiply
    84,351.12x = 116,416.12 × 48,540.40
  4. Step 4: Simplify right side
    84,351.12x = 5,650,885,031.25
  5. Step 5: Solve for x
    x = 5,650,885,031.25/84,351.12
  6. Step 6: Final answer
    x = 66,992.41

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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.