Home / 77,626.85-107,123.60-48,940.70

Finding the Fourth Proportional to 77,626.85, 107,123.60 and 48,940.70

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Solution

The fourth proportional to 77,626.85, 107,123.60 and 48,940.70 is: 67,537.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,626.85 : 107,123.60 = 48,940.70 : x
  2. Step 2: Convert to fraction form
    77,626.85/107,123.60 = 48,940.70/x
  3. Step 3: Cross multiply
    77,626.85x = 107,123.60 × 48,940.70
  4. Step 4: Simplify right side
    77,626.85x = 5,242,703,725.82
  5. Step 5: Solve for x
    x = 5,242,703,725.82/77,626.85
  6. Step 6: Final answer
    x = 67,537.25

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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.