Home / 61,085.12-84,297.76-39,851.84

Finding the Fourth Proportional to 61,085.12, 84,297.76 and 39,851.84

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Solution

The fourth proportional to 61,085.12, 84,297.76 and 39,851.84 is: 54,995.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,085.12 : 84,297.76 = 39,851.84 : x
  2. Step 2: Convert to fraction form
    61,085.12/84,297.76 = 39,851.84/x
  3. Step 3: Cross multiply
    61,085.12x = 84,297.76 × 39,851.84
  4. Step 4: Simplify right side
    61,085.12x = 3,359,420,843.88
  5. Step 5: Solve for x
    x = 3,359,420,843.88/61,085.12
  6. Step 6: Final answer
    x = 54,995.73

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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.