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Finding the Fourth Proportional to 76,223.72, 114,405.86 and 38,810.77

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Solution

The fourth proportional to 76,223.72, 114,405.86 and 38,810.77 is: 58,251.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,223.72 : 114,405.86 = 38,810.77 : x
  2. Step 2: Convert to fraction form
    76,223.72/114,405.86 = 38,810.77/x
  3. Step 3: Cross multiply
    76,223.72x = 114,405.86 × 38,810.77
  4. Step 4: Simplify right side
    76,223.72x = 4,440,179,330.12
  5. Step 5: Solve for x
    x = 4,440,179,330.12/76,223.72
  6. Step 6: Final answer
    x = 58,251.94

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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.