Home / 85,780.27-118,348.41-51,775.84

Finding the Fourth Proportional to 85,780.27, 118,348.41 and 51,775.84

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Solution

The fourth proportional to 85,780.27, 118,348.41 and 51,775.84 is: 71,433.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,780.27 : 118,348.41 = 51,775.84 : x
  2. Step 2: Convert to fraction form
    85,780.27/118,348.41 = 51,775.84/x
  3. Step 3: Cross multiply
    85,780.27x = 118,348.41 × 51,775.84
  4. Step 4: Simplify right side
    85,780.27x = 6,127,588,391.27
  5. Step 5: Solve for x
    x = 6,127,588,391.27/85,780.27
  6. Step 6: Final answer
    x = 71,433.54

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1.5x scale

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.