Home / 53,191.77-79,795.89-18,128.76

Finding the Fourth Proportional to 53,191.77, 79,795.89 and 18,128.76

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Solution

The fourth proportional to 53,191.77, 79,795.89 and 18,128.76 is: 27,195.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,191.77 : 79,795.89 = 18,128.76 : x
  2. Step 2: Convert to fraction form
    53,191.77/79,795.89 = 18,128.76/x
  3. Step 3: Cross multiply
    53,191.77x = 79,795.89 × 18,128.76
  4. Step 4: Simplify right side
    53,191.77x = 1,446,600,538.80
  5. Step 5: Solve for x
    x = 1,446,600,538.80/53,191.77
  6. Step 6: Final answer
    x = 27,195.95

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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.