Home / 77,227.75-106,519.35-70,874.85

Finding the Fourth Proportional to 77,227.75, 106,519.35 and 70,874.85

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Solution

The fourth proportional to 77,227.75, 106,519.35 and 70,874.85 is: 97,756.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,227.75 : 106,519.35 = 70,874.85 : x
  2. Step 2: Convert to fraction form
    77,227.75/106,519.35 = 70,874.85/x
  3. Step 3: Cross multiply
    77,227.75x = 106,519.35 × 70,874.85
  4. Step 4: Simplify right side
    77,227.75x = 7,549,542,953.35
  5. Step 5: Solve for x
    x = 7,549,542,953.35/77,227.75
  6. Step 6: Final answer
    x = 97,756.87

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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.