Home / 91,126.53-136,688.99-28,797.03

Finding the Fourth Proportional to 91,126.53, 136,688.99 and 28,797.03

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Solution

The fourth proportional to 91,126.53, 136,688.99 and 28,797.03 is: 43,195.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,126.53 : 136,688.99 = 28,797.03 : x
  2. Step 2: Convert to fraction form
    91,126.53/136,688.99 = 28,797.03/x
  3. Step 3: Cross multiply
    91,126.53x = 136,688.99 × 28,797.03
  4. Step 4: Simplify right side
    91,126.53x = 3,936,236,801.71
  5. Step 5: Solve for x
    x = 3,936,236,801.71/91,126.53
  6. Step 6: Final answer
    x = 43,195.29

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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.