Home / 92,778.12-139,176.29-26,218.76

Finding the Fourth Proportional to 92,778.12, 139,176.29 and 26,218.76

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Solution

The fourth proportional to 92,778.12, 139,176.29 and 26,218.76 is: 39,330.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,778.12 : 139,176.29 = 26,218.76 : x
  2. Step 2: Convert to fraction form
    92,778.12/139,176.29 = 26,218.76/x
  3. Step 3: Cross multiply
    92,778.12x = 139,176.29 × 26,218.76
  4. Step 4: Simplify right side
    92,778.12x = 3,649,029,114.87
  5. Step 5: Solve for x
    x = 3,649,029,114.87/92,778.12
  6. Step 6: Final answer
    x = 39,330.71

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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.