Home / 52,065.99-78,089.10-25,385.20

Finding the Fourth Proportional to 52,065.99, 78,089.10 and 25,385.20

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Solution

The fourth proportional to 52,065.99, 78,089.10 and 25,385.20 is: 38,072.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,065.99 : 78,089.10 = 25,385.20 : x
  2. Step 2: Convert to fraction form
    52,065.99/78,089.10 = 25,385.20/x
  3. Step 3: Cross multiply
    52,065.99x = 78,089.10 × 25,385.20
  4. Step 4: Simplify right side
    52,065.99x = 1,982,307,130.90
  5. Step 5: Solve for x
    x = 1,982,307,130.90/52,065.99
  6. Step 6: Final answer
    x = 38,072.97

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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.