Home / 75,307.12-103,920.37-41,314.86

Finding the Fourth Proportional to 75,307.12, 103,920.37 and 41,314.86

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Solution

The fourth proportional to 75,307.12, 103,920.37 and 41,314.86 is: 57,012.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,307.12 : 103,920.37 = 41,314.86 : x
  2. Step 2: Convert to fraction form
    75,307.12/103,920.37 = 41,314.86/x
  3. Step 3: Cross multiply
    75,307.12x = 103,920.37 × 41,314.86
  4. Step 4: Simplify right side
    75,307.12x = 4,293,455,434.41
  5. Step 5: Solve for x
    x = 4,293,455,434.41/75,307.12
  6. Step 6: Final answer
    x = 57,012.61

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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.