Home / 52,189.74-78,290.55-18,925.38

Finding the Fourth Proportional to 52,189.74, 78,290.55 and 18,925.38

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Solution

The fourth proportional to 52,189.74, 78,290.55 and 18,925.38 is: 28,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,189.74 : 78,290.55 = 18,925.38 : x
  2. Step 2: Convert to fraction form
    52,189.74/78,290.55 = 18,925.38/x
  3. Step 3: Cross multiply
    52,189.74x = 78,290.55 × 18,925.38
  4. Step 4: Simplify right side
    52,189.74x = 1,481,678,409.16
  5. Step 5: Solve for x
    x = 1,481,678,409.16/52,189.74
  6. Step 6: Final answer
    x = 28,390.22

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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.