Home / 84,209.64-116,247.12-55,546.20

Finding the Fourth Proportional to 84,209.64, 116,247.12 and 55,546.20

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Solution

The fourth proportional to 84,209.64, 116,247.12 and 55,546.20 is: 76,678.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,209.64 : 116,247.12 = 55,546.20 : x
  2. Step 2: Convert to fraction form
    84,209.64/116,247.12 = 55,546.20/x
  3. Step 3: Cross multiply
    84,209.64x = 116,247.12 × 55,546.20
  4. Step 4: Simplify right side
    84,209.64x = 6,457,085,776.94
  5. Step 5: Solve for x
    x = 6,457,085,776.94/84,209.64
  6. Step 6: Final answer
    x = 76,678.70

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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.