Home / 55,130.80-76,048.39-40,005.88

Finding the Fourth Proportional to 55,130.80, 76,048.39 and 40,005.88

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Solution

The fourth proportional to 55,130.80, 76,048.39 and 40,005.88 is: 55,184.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,130.80 : 76,048.39 = 40,005.88 : x
  2. Step 2: Convert to fraction form
    55,130.80/76,048.39 = 40,005.88/x
  3. Step 3: Cross multiply
    55,130.80x = 76,048.39 × 40,005.88
  4. Step 4: Simplify right side
    55,130.80x = 3,042,382,764.53
  5. Step 5: Solve for x
    x = 3,042,382,764.53/55,130.80
  6. Step 6: Final answer
    x = 55,184.81

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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.