Home / 55,680.21-76,800.15-34,446.87

Finding the Fourth Proportional to 55,680.21, 76,800.15 and 34,446.87

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Solution

The fourth proportional to 55,680.21, 76,800.15 and 34,446.87 is: 47,512.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,680.21 : 76,800.15 = 34,446.87 : x
  2. Step 2: Convert to fraction form
    55,680.21/76,800.15 = 34,446.87/x
  3. Step 3: Cross multiply
    55,680.21x = 76,800.15 × 34,446.87
  4. Step 4: Simplify right side
    55,680.21x = 2,645,524,783.03
  5. Step 5: Solve for x
    x = 2,645,524,783.03/55,680.21
  6. Step 6: Final answer
    x = 47,512.84

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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.