Home / 85,273.10-117,723.02-51,289.18

Finding the Fourth Proportional to 85,273.10, 117,723.02 and 51,289.18

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Solution

The fourth proportional to 85,273.10, 117,723.02 and 51,289.18 is: 70,806.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,273.10 : 117,723.02 = 51,289.18 : x
  2. Step 2: Convert to fraction form
    85,273.10/117,723.02 = 51,289.18/x
  3. Step 3: Cross multiply
    85,273.10x = 117,723.02 × 51,289.18
  4. Step 4: Simplify right side
    85,273.10x = 6,037,917,562.86
  5. Step 5: Solve for x
    x = 6,037,917,562.86/85,273.10
  6. Step 6: Final answer
    x = 70,806.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.