Home / 53,190.63-79,799.61-19,911.17

Finding the Fourth Proportional to 53,190.63, 79,799.61 and 19,911.17

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Solution

The fourth proportional to 53,190.63, 79,799.61 and 19,911.17 is: 29,871.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,190.63 : 79,799.61 = 19,911.17 : x
  2. Step 2: Convert to fraction form
    53,190.63/79,799.61 = 19,911.17/x
  3. Step 3: Cross multiply
    53,190.63x = 79,799.61 × 19,911.17
  4. Step 4: Simplify right side
    53,190.63x = 1,588,903,600.64
  5. Step 5: Solve for x
    x = 1,588,903,600.64/53,190.63
  6. Step 6: Final answer
    x = 29,871.87

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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.