Home / 58,315.40-87,451.14-18,861.92

Finding the Fourth Proportional to 58,315.40, 87,451.14 and 18,861.92

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Solution

The fourth proportional to 58,315.40, 87,451.14 and 18,861.92 is: 28,285.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,315.40 : 87,451.14 = 18,861.92 : x
  2. Step 2: Convert to fraction form
    58,315.40/87,451.14 = 18,861.92/x
  3. Step 3: Cross multiply
    58,315.40x = 87,451.14 × 18,861.92
  4. Step 4: Simplify right side
    58,315.40x = 1,649,496,406.59
  5. Step 5: Solve for x
    x = 1,649,496,406.59/58,315.40
  6. Step 6: Final answer
    x = 28,285.78

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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.