Home / 52,144.48-78,222.78-18,880.21

Finding the Fourth Proportional to 52,144.48, 78,222.78 and 18,880.21

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Solution

The fourth proportional to 52,144.48, 78,222.78 and 18,880.21 is: 28,322.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,144.48 : 78,222.78 = 18,880.21 : x
  2. Step 2: Convert to fraction form
    52,144.48/78,222.78 = 18,880.21/x
  3. Step 3: Cross multiply
    52,144.48x = 78,222.78 × 18,880.21
  4. Step 4: Simplify right side
    52,144.48x = 1,476,862,513.18
  5. Step 5: Solve for x
    x = 1,476,862,513.18/52,144.48
  6. Step 6: Final answer
    x = 28,322.51

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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.