Home / 49,383.68-68,136-28,155.20

Finding the Fourth Proportional to 49,383.68, 68,136 and 28,155.20

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Solution

The fourth proportional to 49,383.68, 68,136 and 28,155.20 is: 38,846.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,383.68 : 68,136 = 28,155.20 : x
  2. Step 2: Convert to fraction form
    49,383.68/68,136 = 28,155.20/x
  3. Step 3: Cross multiply
    49,383.68x = 68,136 × 28,155.20
  4. Step 4: Simplify right side
    49,383.68x = 1,918,382,707.20
  5. Step 5: Solve for x
    x = 1,918,382,707.20/49,383.68
  6. Step 6: Final answer
    x = 38,846.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.