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Finding the Fourth Proportional to 92,415.78, 127,533.78 and 49,974.30

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Solution

The fourth proportional to 92,415.78, 127,533.78 and 49,974.30 is: 68,964.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,415.78 : 127,533.78 = 49,974.30 : x
  2. Step 2: Convert to fraction form
    92,415.78/127,533.78 = 49,974.30/x
  3. Step 3: Cross multiply
    92,415.78x = 127,533.78 × 49,974.30
  4. Step 4: Simplify right side
    92,415.78x = 6,373,411,381.85
  5. Step 5: Solve for x
    x = 6,373,411,381.85/92,415.78
  6. Step 6: Final answer
    x = 68,964.54

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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.