Home / 55,159.38-76,120.83-30,008.88

Finding the Fourth Proportional to 55,159.38, 76,120.83 and 30,008.88

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Solution

The fourth proportional to 55,159.38, 76,120.83 and 30,008.88 is: 41,412.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,159.38 : 76,120.83 = 30,008.88 : x
  2. Step 2: Convert to fraction form
    55,159.38/76,120.83 = 30,008.88/x
  3. Step 3: Cross multiply
    55,159.38x = 76,120.83 × 30,008.88
  4. Step 4: Simplify right side
    55,159.38x = 2,284,300,852.97
  5. Step 5: Solve for x
    x = 2,284,300,852.97/55,159.38
  6. Step 6: Final answer
    x = 41,412.74

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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.