Home / 90,339.82-135,555.99-43,008.46

Finding the Fourth Proportional to 90,339.82, 135,555.99 and 43,008.46

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Solution

The fourth proportional to 90,339.82, 135,555.99 and 43,008.46 is: 64,534.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,339.82 : 135,555.99 = 43,008.46 : x
  2. Step 2: Convert to fraction form
    90,339.82/135,555.99 = 43,008.46/x
  3. Step 3: Cross multiply
    90,339.82x = 135,555.99 × 43,008.46
  4. Step 4: Simplify right side
    90,339.82x = 5,830,054,373.68
  5. Step 5: Solve for x
    x = 5,830,054,373.68/90,339.82
  6. Step 6: Final answer
    x = 64,534.71

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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.