Home / 51,408.77-70,948.35-28,749.62

Finding the Fourth Proportional to 51,408.77, 70,948.35 and 28,749.62

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Solution

The fourth proportional to 51,408.77, 70,948.35 and 28,749.62 is: 39,676.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,408.77 : 70,948.35 = 28,749.62 : x
  2. Step 2: Convert to fraction form
    51,408.77/70,948.35 = 28,749.62/x
  3. Step 3: Cross multiply
    51,408.77x = 70,948.35 × 28,749.62
  4. Step 4: Simplify right side
    51,408.77x = 2,039,737,747.39
  5. Step 5: Solve for x
    x = 2,039,737,747.39/51,408.77
  6. Step 6: Final answer
    x = 39,676.85

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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.