Home / 55,104.30-82,547.10-30,107.70

Finding the Fourth Proportional to 55,104.30, 82,547.10 and 30,107.70

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Solution

The fourth proportional to 55,104.30, 82,547.10 and 30,107.70 is: 45,101.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,104.30 : 82,547.10 = 30,107.70 : x
  2. Step 2: Convert to fraction form
    55,104.30/82,547.10 = 30,107.70/x
  3. Step 3: Cross multiply
    55,104.30x = 82,547.10 × 30,107.70
  4. Step 4: Simplify right side
    55,104.30x = 2,485,303,322.67
  5. Step 5: Solve for x
    x = 2,485,303,322.67/55,104.30
  6. Step 6: Final answer
    x = 45,101.80

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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.