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Finding the Fourth Proportional to 53,149.55, 73,416.48 and 39,697.47

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Solution

The fourth proportional to 53,149.55, 73,416.48 and 39,697.47 is: 54,834.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,149.55 : 73,416.48 = 39,697.47 : x
  2. Step 2: Convert to fraction form
    53,149.55/73,416.48 = 39,697.47/x
  3. Step 3: Cross multiply
    53,149.55x = 73,416.48 × 39,697.47
  4. Step 4: Simplify right side
    53,149.55x = 2,914,448,512.31
  5. Step 5: Solve for x
    x = 2,914,448,512.31/53,149.55
  6. Step 6: Final answer
    x = 54,834.87

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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.