Home / 74,576.13-102,912.03-42,722.88

Finding the Fourth Proportional to 74,576.13, 102,912.03 and 42,722.88

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Solution

The fourth proportional to 74,576.13, 102,912.03 and 42,722.88 is: 58,955.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,576.13 : 102,912.03 = 42,722.88 : x
  2. Step 2: Convert to fraction form
    74,576.13/102,912.03 = 42,722.88/x
  3. Step 3: Cross multiply
    74,576.13x = 102,912.03 × 42,722.88
  4. Step 4: Simplify right side
    74,576.13x = 4,396,698,308.25
  5. Step 5: Solve for x
    x = 4,396,698,308.25/74,576.13
  6. Step 6: Final answer
    x = 58,955.84

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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.