Home / 49,351.68-68,105.43-28,130.40

Finding the Fourth Proportional to 49,351.68, 68,105.43 and 28,130.40

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Solution

The fourth proportional to 49,351.68, 68,105.43 and 28,130.40 is: 38,820.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,351.68 : 68,105.43 = 28,130.40 : x
  2. Step 2: Convert to fraction form
    49,351.68/68,105.43 = 28,130.40/x
  3. Step 3: Cross multiply
    49,351.68x = 68,105.43 × 28,130.40
  4. Step 4: Simplify right side
    49,351.68x = 1,915,832,988.07
  5. Step 5: Solve for x
    x = 1,915,832,988.07/49,351.68
  6. Step 6: Final answer
    x = 38,820.02

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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.