Home / 55,855.84-77,087.28-30,704.80

Finding the Fourth Proportional to 55,855.84, 77,087.28 and 30,704.80

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Solution

The fourth proportional to 55,855.84, 77,087.28 and 30,704.80 is: 42,376.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,855.84 : 77,087.28 = 30,704.80 : x
  2. Step 2: Convert to fraction form
    55,855.84/77,087.28 = 30,704.80/x
  3. Step 3: Cross multiply
    55,855.84x = 77,087.28 × 30,704.80
  4. Step 4: Simplify right side
    55,855.84x = 2,366,949,514.94
  5. Step 5: Solve for x
    x = 2,366,949,514.94/55,855.84
  6. Step 6: Final answer
    x = 42,376.04

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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.