Home / 74,649.11-103,013.70-40,656.85

Finding the Fourth Proportional to 74,649.11, 103,013.70 and 40,656.85

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Solution

The fourth proportional to 74,649.11, 103,013.70 and 40,656.85 is: 56,105.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,649.11 : 103,013.70 = 40,656.85 : x
  2. Step 2: Convert to fraction form
    74,649.11/103,013.70 = 40,656.85/x
  3. Step 3: Cross multiply
    74,649.11x = 103,013.70 × 40,656.85
  4. Step 4: Simplify right side
    74,649.11x = 4,188,212,291.31
  5. Step 5: Solve for x
    x = 4,188,212,291.31/74,649.11
  6. Step 6: Final answer
    x = 56,105.32

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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.