Home / 90,573.06-135,857.43-28,241.94

Finding the Fourth Proportional to 90,573.06, 135,857.43 and 28,241.94

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Solution

The fourth proportional to 90,573.06, 135,857.43 and 28,241.94 is: 42,362.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,573.06 : 135,857.43 = 28,241.94 : x
  2. Step 2: Convert to fraction form
    90,573.06/135,857.43 = 28,241.94/x
  3. Step 3: Cross multiply
    90,573.06x = 135,857.43 × 28,241.94
  4. Step 4: Simplify right side
    90,573.06x = 3,836,877,386.61
  5. Step 5: Solve for x
    x = 3,836,877,386.61/90,573.06
  6. Step 6: Final answer
    x = 42,362.24

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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.