Home / 74,700.38-103,083.51-40,708.13

Finding the Fourth Proportional to 74,700.38, 103,083.51 and 40,708.13

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Solution

The fourth proportional to 74,700.38, 103,083.51 and 40,708.13 is: 56,175.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,700.38 : 103,083.51 = 40,708.13 : x
  2. Step 2: Convert to fraction form
    74,700.38/103,083.51 = 40,708.13/x
  3. Step 3: Cross multiply
    74,700.38x = 103,083.51 × 40,708.13
  4. Step 4: Simplify right side
    74,700.38x = 4,196,337,173.49
  5. Step 5: Solve for x
    x = 4,196,337,173.49/74,700.38
  6. Step 6: Final answer
    x = 56,175.58

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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.