Home / 51,137.42-70,569.60-29,920.77

Finding the Fourth Proportional to 51,137.42, 70,569.60 and 29,920.77

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Solution

The fourth proportional to 51,137.42, 70,569.60 and 29,920.77 is: 41,290.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,137.42 : 70,569.60 = 29,920.77 : x
  2. Step 2: Convert to fraction form
    51,137.42/70,569.60 = 29,920.77/x
  3. Step 3: Cross multiply
    51,137.42x = 70,569.60 × 29,920.77
  4. Step 4: Simplify right side
    51,137.42x = 2,111,496,770.59
  5. Step 5: Solve for x
    x = 2,111,496,770.59/51,137.42
  6. Step 6: Final answer
    x = 41,290.64

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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.