Home / 75,429.89-113,144.84-19,270.13

Finding the Fourth Proportional to 75,429.89, 113,144.84 and 19,270.13

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Solution

The fourth proportional to 75,429.89, 113,144.84 and 19,270.13 is: 28,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,429.89 : 113,144.84 = 19,270.13 : x
  2. Step 2: Convert to fraction form
    75,429.89/113,144.84 = 19,270.13/x
  3. Step 3: Cross multiply
    75,429.89x = 113,144.84 × 19,270.13
  4. Step 4: Simplify right side
    75,429.89x = 2,180,315,113.55
  5. Step 5: Solve for x
    x = 2,180,315,113.55/75,429.89
  6. Step 6: Final answer
    x = 28,905.19

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1.5x scale

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.