Home / 90,384.56-135,614-39,757.52

Finding the Fourth Proportional to 90,384.56, 135,614 and 39,757.52

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Solution

The fourth proportional to 90,384.56, 135,614 and 39,757.52 is: 59,652.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,384.56 : 135,614 = 39,757.52 : x
  2. Step 2: Convert to fraction form
    90,384.56/135,614 = 39,757.52/x
  3. Step 3: Cross multiply
    90,384.56x = 135,614 × 39,757.52
  4. Step 4: Simplify right side
    90,384.56x = 5,391,676,317.28
  5. Step 5: Solve for x
    x = 5,391,676,317.28/90,384.56
  6. Step 6: Final answer
    x = 59,652.63

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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.