Home / 74,700.30-103,083.40-40,708.06

Finding the Fourth Proportional to 74,700.30, 103,083.40 and 40,708.06

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Solution

The fourth proportional to 74,700.30, 103,083.40 and 40,708.06 is: 56,175.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,700.30 : 103,083.40 = 40,708.06 : x
  2. Step 2: Convert to fraction form
    74,700.30/103,083.40 = 40,708.06/x
  3. Step 3: Cross multiply
    74,700.30x = 103,083.40 × 40,708.06
  4. Step 4: Simplify right side
    74,700.30x = 4,196,324,708.68
  5. Step 5: Solve for x
    x = 4,196,324,708.68/74,700.30
  6. Step 6: Final answer
    x = 56,175.47

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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.