Home / 55,563.38-76,679.30-30,412.88

Finding the Fourth Proportional to 55,563.38, 76,679.30 and 30,412.88

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Solution

The fourth proportional to 55,563.38, 76,679.30 and 30,412.88 is: 41,970.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,563.38 : 76,679.30 = 30,412.88 : x
  2. Step 2: Convert to fraction form
    55,563.38/76,679.30 = 30,412.88/x
  3. Step 3: Cross multiply
    55,563.38x = 76,679.30 × 30,412.88
  4. Step 4: Simplify right side
    55,563.38x = 2,332,038,349.38
  5. Step 5: Solve for x
    x = 2,332,038,349.38/55,563.38
  6. Step 6: Final answer
    x = 41,970.78

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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.