Home / 85,016.34-117,348.75-54,801.72

Finding the Fourth Proportional to 85,016.34, 117,348.75 and 54,801.72

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Solution

The fourth proportional to 85,016.34, 117,348.75 and 54,801.72 is: 75,643.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,016.34 : 117,348.75 = 54,801.72 : x
  2. Step 2: Convert to fraction form
    85,016.34/117,348.75 = 54,801.72/x
  3. Step 3: Cross multiply
    85,016.34x = 117,348.75 × 54,801.72
  4. Step 4: Simplify right side
    85,016.34x = 6,430,913,339.85
  5. Step 5: Solve for x
    x = 6,430,913,339.85/85,016.34
  6. Step 6: Final answer
    x = 75,643.26

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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.