Home / 76,808.85-115,225.44-26,887.74

Finding the Fourth Proportional to 76,808.85, 115,225.44 and 26,887.74

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Solution

The fourth proportional to 76,808.85, 115,225.44 and 26,887.74 is: 40,335.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,808.85 : 115,225.44 = 26,887.74 : x
  2. Step 2: Convert to fraction form
    76,808.85/115,225.44 = 26,887.74/x
  3. Step 3: Cross multiply
    76,808.85x = 115,225.44 × 26,887.74
  4. Step 4: Simplify right side
    76,808.85x = 3,098,151,672.11
  5. Step 5: Solve for x
    x = 3,098,151,672.11/76,808.85
  6. Step 6: Final answer
    x = 40,335.87

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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.