Home / 53,622.76-80,434.16-18,543.28

Finding the Fourth Proportional to 53,622.76, 80,434.16 and 18,543.28

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Solution

The fourth proportional to 53,622.76, 80,434.16 and 18,543.28 is: 27,814.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,622.76 : 80,434.16 = 18,543.28 : x
  2. Step 2: Convert to fraction form
    53,622.76/80,434.16 = 18,543.28/x
  3. Step 3: Cross multiply
    53,622.76x = 80,434.16 × 18,543.28
  4. Step 4: Simplify right side
    53,622.76x = 1,491,513,150.44
  5. Step 5: Solve for x
    x = 1,491,513,150.44/53,622.76
  6. Step 6: Final answer
    x = 27,814.93

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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.