Home / 53,109.49-79,636.79-15,664.80

Finding the Fourth Proportional to 53,109.49, 79,636.79 and 15,664.80

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Solution

The fourth proportional to 53,109.49, 79,636.79 and 15,664.80 is: 23,489.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,109.49 : 79,636.79 = 15,664.80 : x
  2. Step 2: Convert to fraction form
    53,109.49/79,636.79 = 15,664.80/x
  3. Step 3: Cross multiply
    53,109.49x = 79,636.79 × 15,664.80
  4. Step 4: Simplify right side
    53,109.49x = 1,247,493,989.81
  5. Step 5: Solve for x
    x = 1,247,493,989.81/53,109.49
  6. Step 6: Final answer
    x = 23,489.10

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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.