Home / 55,107.84-82,685.16-30,118.69

Finding the Fourth Proportional to 55,107.84, 82,685.16 and 30,118.69

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Solution

The fourth proportional to 55,107.84, 82,685.16 and 30,118.69 is: 45,190.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,107.84 : 82,685.16 = 30,118.69 : x
  2. Step 2: Convert to fraction form
    55,107.84/82,685.16 = 30,118.69/x
  3. Step 3: Cross multiply
    55,107.84x = 82,685.16 × 30,118.69
  4. Step 4: Simplify right side
    55,107.84x = 2,490,368,701.64
  5. Step 5: Solve for x
    x = 2,490,368,701.64/55,107.84
  6. Step 6: Final answer
    x = 45,190.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.