Home / 53,818.04-80,679.70-20,963

Finding the Fourth Proportional to 53,818.04, 80,679.70 and 20,963

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Solution

The fourth proportional to 53,818.04, 80,679.70 and 20,963 is: 31,426.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,818.04 : 80,679.70 = 20,963 : x
  2. Step 2: Convert to fraction form
    53,818.04/80,679.70 = 20,963/x
  3. Step 3: Cross multiply
    53,818.04x = 80,679.70 × 20,963
  4. Step 4: Simplify right side
    53,818.04x = 1,691,288,551.10
  5. Step 5: Solve for x
    x = 1,691,288,551.10/53,818.04
  6. Step 6: Final answer
    x = 31,426.05

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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.