Home / 61,610.10-85,035.22-38,934.70

Finding the Fourth Proportional to 61,610.10, 85,035.22 and 38,934.70

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Solution

The fourth proportional to 61,610.10, 85,035.22 and 38,934.70 is: 53,738.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,610.10 : 85,035.22 = 38,934.70 : x
  2. Step 2: Convert to fraction form
    61,610.10/85,035.22 = 38,934.70/x
  3. Step 3: Cross multiply
    61,610.10x = 85,035.22 × 38,934.70
  4. Step 4: Simplify right side
    61,610.10x = 3,310,820,780.13
  5. Step 5: Solve for x
    x = 3,310,820,780.13/61,610.10
  6. Step 6: Final answer
    x = 53,738.28

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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.