Home / 61,613.66-84,987.69-40,394.28

Finding the Fourth Proportional to 61,613.66, 84,987.69 and 40,394.28

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Solution

The fourth proportional to 61,613.66, 84,987.69 and 40,394.28 is: 55,718.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,613.66 : 84,987.69 = 40,394.28 : x
  2. Step 2: Convert to fraction form
    61,613.66/84,987.69 = 40,394.28/x
  3. Step 3: Cross multiply
    61,613.66x = 84,987.69 × 40,394.28
  4. Step 4: Simplify right side
    61,613.66x = 3,433,016,546.41
  5. Step 5: Solve for x
    x = 3,433,016,546.41/61,613.66
  6. Step 6: Final answer
    x = 55,718.44

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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.