Home / 90,679.23-135,880.34-38,060.01

Finding the Fourth Proportional to 90,679.23, 135,880.34 and 38,060.01

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Solution

The fourth proportional to 90,679.23, 135,880.34 and 38,060.01 is: 57,031.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,679.23 : 135,880.34 = 38,060.01 : x
  2. Step 2: Convert to fraction form
    90,679.23/135,880.34 = 38,060.01/x
  3. Step 3: Cross multiply
    90,679.23x = 135,880.34 × 38,060.01
  4. Step 4: Simplify right side
    90,679.23x = 5,171,606,908.90
  5. Step 5: Solve for x
    x = 5,171,606,908.90/90,679.23
  6. Step 6: Final answer
    x = 57,031.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.