Home / 92,872.72-128,165.52-50,431.96

Finding the Fourth Proportional to 92,872.72, 128,165.52 and 50,431.96

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Solution

The fourth proportional to 92,872.72, 128,165.52 and 50,431.96 is: 69,596.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,872.72 : 128,165.52 = 50,431.96 : x
  2. Step 2: Convert to fraction form
    92,872.72/128,165.52 = 50,431.96/x
  3. Step 3: Cross multiply
    92,872.72x = 128,165.52 × 50,431.96
  4. Step 4: Simplify right side
    92,872.72x = 6,463,638,378.02
  5. Step 5: Solve for x
    x = 6,463,638,378.02/92,872.72
  6. Step 6: Final answer
    x = 69,596.74

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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.