Home / 74,717.12-103,108.97-40,725.61

Finding the Fourth Proportional to 74,717.12, 103,108.97 and 40,725.61

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Solution

The fourth proportional to 74,717.12, 103,108.97 and 40,725.61 is: 56,200.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,717.12 : 103,108.97 = 40,725.61 : x
  2. Step 2: Convert to fraction form
    74,717.12/103,108.97 = 40,725.61/x
  3. Step 3: Cross multiply
    74,717.12x = 103,108.97 × 40,725.61
  4. Step 4: Simplify right side
    74,717.12x = 4,199,175,699.72
  5. Step 5: Solve for x
    x = 4,199,175,699.72/74,717.12
  6. Step 6: Final answer
    x = 56,200.98

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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.