Home / 83,717.85-115,524.66-47,408.90

Finding the Fourth Proportional to 83,717.85, 115,524.66 and 47,408.90

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Solution

The fourth proportional to 83,717.85, 115,524.66 and 47,408.90 is: 65,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,717.85 : 115,524.66 = 47,408.90 : x
  2. Step 2: Convert to fraction form
    83,717.85/115,524.66 = 47,408.90/x
  3. Step 3: Cross multiply
    83,717.85x = 115,524.66 × 47,408.90
  4. Step 4: Simplify right side
    83,717.85x = 5,476,896,653.63
  5. Step 5: Solve for x
    x = 5,476,896,653.63/83,717.85
  6. Step 6: Final answer
    x = 65,420.89

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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.