Home / 56,432.94-84,640.23-20,911.02

Finding the Fourth Proportional to 56,432.94, 84,640.23 and 20,911.02

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Solution

The fourth proportional to 56,432.94, 84,640.23 and 20,911.02 is: 31,363.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,432.94 : 84,640.23 = 20,911.02 : x
  2. Step 2: Convert to fraction form
    56,432.94/84,640.23 = 20,911.02/x
  3. Step 3: Cross multiply
    56,432.94x = 84,640.23 × 20,911.02
  4. Step 4: Simplify right side
    56,432.94x = 1,769,913,542.33
  5. Step 5: Solve for x
    x = 1,769,913,542.33/56,432.94
  6. Step 6: Final answer
    x = 31,363.13

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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.