Home / 55,375.20-76,474.80-42,674.40

Finding the Fourth Proportional to 55,375.20, 76,474.80 and 42,674.40

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Solution

The fourth proportional to 55,375.20, 76,474.80 and 42,674.40 is: 58,934.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,375.20 : 76,474.80 = 42,674.40 : x
  2. Step 2: Convert to fraction form
    55,375.20/76,474.80 = 42,674.40/x
  3. Step 3: Cross multiply
    55,375.20x = 76,474.80 × 42,674.40
  4. Step 4: Simplify right side
    55,375.20x = 3,263,516,205.12
  5. Step 5: Solve for x
    x = 3,263,516,205.12/55,375.20
  6. Step 6: Final answer
    x = 58,934.62

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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.