Home / 87,870.93-131,779.14-31,703.75

Finding the Fourth Proportional to 87,870.93, 131,779.14 and 31,703.75

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Solution

The fourth proportional to 87,870.93, 131,779.14 and 31,703.75 is: 47,545.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,870.93 : 131,779.14 = 31,703.75 : x
  2. Step 2: Convert to fraction form
    87,870.93/131,779.14 = 31,703.75/x
  3. Step 3: Cross multiply
    87,870.93x = 131,779.14 × 31,703.75
  4. Step 4: Simplify right side
    87,870.93x = 4,177,892,131.99
  5. Step 5: Solve for x
    x = 4,177,892,131.99/87,870.93
  6. Step 6: Final answer
    x = 47,545.78

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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.