Home / 57,021.18-85,535.28-21,960.87

Finding the Fourth Proportional to 57,021.18, 85,535.28 and 21,960.87

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Solution

The fourth proportional to 57,021.18, 85,535.28 and 21,960.87 is: 32,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021.18 : 85,535.28 = 21,960.87 : x
  2. Step 2: Convert to fraction form
    57,021.18/85,535.28 = 21,960.87/x
  3. Step 3: Cross multiply
    57,021.18x = 85,535.28 × 21,960.87
  4. Step 4: Simplify right side
    57,021.18x = 1,878,429,164.49
  5. Step 5: Solve for x
    x = 1,878,429,164.49/57,021.18
  6. Step 6: Final answer
    x = 32,942.66

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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.