Home / 49,748.10-68,739.78-39,759

Finding the Fourth Proportional to 49,748.10, 68,739.78 and 39,759

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Solution

The fourth proportional to 49,748.10, 68,739.78 and 39,759 is: 54,937.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,748.10 : 68,739.78 = 39,759 : x
  2. Step 2: Convert to fraction form
    49,748.10/68,739.78 = 39,759/x
  3. Step 3: Cross multiply
    49,748.10x = 68,739.78 × 39,759
  4. Step 4: Simplify right side
    49,748.10x = 2,733,024,913.02
  5. Step 5: Solve for x
    x = 2,733,024,913.02/49,748.10
  6. Step 6: Final answer
    x = 54,937.27

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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.