Home / 56,299.91-84,483.18-20,785.99

Finding the Fourth Proportional to 56,299.91, 84,483.18 and 20,785.99

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Solution

The fourth proportional to 56,299.91, 84,483.18 and 20,785.99 is: 31,191.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,299.91 : 84,483.18 = 20,785.99 : x
  2. Step 2: Convert to fraction form
    56,299.91/84,483.18 = 20,785.99/x
  3. Step 3: Cross multiply
    56,299.91x = 84,483.18 × 20,785.99
  4. Step 4: Simplify right side
    56,299.91x = 1,756,066,660.99
  5. Step 5: Solve for x
    x = 1,756,066,660.99/56,299.91
  6. Step 6: Final answer
    x = 31,191.29

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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.