Home / 85,118.73-127,673.30-37,720.17

Finding the Fourth Proportional to 85,118.73, 127,673.30 and 37,720.17

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Solution

The fourth proportional to 85,118.73, 127,673.30 and 37,720.17 is: 56,578.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,118.73 : 127,673.30 = 37,720.17 : x
  2. Step 2: Convert to fraction form
    85,118.73/127,673.30 = 37,720.17/x
  3. Step 3: Cross multiply
    85,118.73x = 127,673.30 × 37,720.17
  4. Step 4: Simplify right side
    85,118.73x = 4,815,858,391.86
  5. Step 5: Solve for x
    x = 4,815,858,391.86/85,118.73
  6. Step 6: Final answer
    x = 56,578.13

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1.5x scale

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.