Home / 42,095.70-63,121.41-12,509.10

Finding the Fourth Proportional to 42,095.70, 63,121.41 and 12,509.10

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Solution

The fourth proportional to 42,095.70, 63,121.41 and 12,509.10 is: 18,757.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,095.70 : 63,121.41 = 12,509.10 : x
  2. Step 2: Convert to fraction form
    42,095.70/63,121.41 = 12,509.10/x
  3. Step 3: Cross multiply
    42,095.70x = 63,121.41 × 12,509.10
  4. Step 4: Simplify right side
    42,095.70x = 789,592,029.83
  5. Step 5: Solve for x
    x = 789,592,029.83/42,095.70
  6. Step 6: Final answer
    x = 18,757.07

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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.