Home / 53,342.68-79,991.88-20,045.56

Finding the Fourth Proportional to 53,342.68, 79,991.88 and 20,045.56

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Solution

The fourth proportional to 53,342.68, 79,991.88 and 20,045.56 is: 30,060.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,342.68 : 79,991.88 = 20,045.56 : x
  2. Step 2: Convert to fraction form
    53,342.68/79,991.88 = 20,045.56/x
  3. Step 3: Cross multiply
    53,342.68x = 79,991.88 × 20,045.56
  4. Step 4: Simplify right side
    53,342.68x = 1,603,482,030.05
  5. Step 5: Solve for x
    x = 1,603,482,030.05/53,342.68
  6. Step 6: Final answer
    x = 30,060.02

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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.