Home / 53,187.80-73,396.80-30,511.04

Finding the Fourth Proportional to 53,187.80, 73,396.80 and 30,511.04

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Solution

The fourth proportional to 53,187.80, 73,396.80 and 30,511.04 is: 42,103.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,187.80 : 73,396.80 = 30,511.04 : x
  2. Step 2: Convert to fraction form
    53,187.80/73,396.80 = 30,511.04/x
  3. Step 3: Cross multiply
    53,187.80x = 73,396.80 × 30,511.04
  4. Step 4: Simplify right side
    53,187.80x = 2,239,412,700.67
  5. Step 5: Solve for x
    x = 2,239,412,700.67/53,187.80
  6. Step 6: Final answer
    x = 42,103.88

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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.