Home / 83,135.57-124,703.35-49,813.89

Finding the Fourth Proportional to 83,135.57, 124,703.35 and 49,813.89

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Solution

The fourth proportional to 83,135.57, 124,703.35 and 49,813.89 is: 74,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,135.57 : 124,703.35 = 49,813.89 : x
  2. Step 2: Convert to fraction form
    83,135.57/124,703.35 = 49,813.89/x
  3. Step 3: Cross multiply
    83,135.57x = 124,703.35 × 49,813.89
  4. Step 4: Simplify right side
    83,135.57x = 6,211,958,367.36
  5. Step 5: Solve for x
    x = 6,211,958,367.36/83,135.57
  6. Step 6: Final answer
    x = 74,720.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.