Home / 53,386.45-79,991.72-18,306.85

Finding the Fourth Proportional to 53,386.45, 79,991.72 and 18,306.85

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Solution

The fourth proportional to 53,386.45, 79,991.72 and 18,306.85 is: 27,430.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,386.45 : 79,991.72 = 18,306.85 : x
  2. Step 2: Convert to fraction form
    53,386.45/79,991.72 = 18,306.85/x
  3. Step 3: Cross multiply
    53,386.45x = 79,991.72 × 18,306.85
  4. Step 4: Simplify right side
    53,386.45x = 1,464,396,327.75
  5. Step 5: Solve for x
    x = 1,464,396,327.75/53,386.45
  6. Step 6: Final answer
    x = 27,430.11

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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.