Home / 80,780.64-111,469.20-46,800.06

Finding the Fourth Proportional to 80,780.64, 111,469.20 and 46,800.06

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Solution

The fourth proportional to 80,780.64, 111,469.20 and 46,800.06 is: 64,579.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,780.64 : 111,469.20 = 46,800.06 : x
  2. Step 2: Convert to fraction form
    80,780.64/111,469.20 = 46,800.06/x
  3. Step 3: Cross multiply
    80,780.64x = 111,469.20 × 46,800.06
  4. Step 4: Simplify right side
    80,780.64x = 5,216,765,248.15
  5. Step 5: Solve for x
    x = 5,216,765,248.15/80,780.64
  6. Step 6: Final answer
    x = 64,579.40

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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.