Home / 55,987.20-77,263.04-30,836.48

Finding the Fourth Proportional to 55,987.20, 77,263.04 and 30,836.48

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Solution

The fourth proportional to 55,987.20, 77,263.04 and 30,836.48 is: 42,554.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,987.20 : 77,263.04 = 30,836.48 : x
  2. Step 2: Convert to fraction form
    55,987.20/77,263.04 = 30,836.48/x
  3. Step 3: Cross multiply
    55,987.20x = 77,263.04 × 30,836.48
  4. Step 4: Simplify right side
    55,987.20x = 2,382,520,187.70
  5. Step 5: Solve for x
    x = 2,382,520,187.70/55,987.20
  6. Step 6: Final answer
    x = 42,554.73

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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.