Home / 92,979.12-128,310.42-50,537.52

Finding the Fourth Proportional to 92,979.12, 128,310.42 and 50,537.52

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Solution

The fourth proportional to 92,979.12, 128,310.42 and 50,537.52 is: 69,741.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,979.12 : 128,310.42 = 50,537.52 : x
  2. Step 2: Convert to fraction form
    92,979.12/128,310.42 = 50,537.52/x
  3. Step 3: Cross multiply
    92,979.12x = 128,310.42 × 50,537.52
  4. Step 4: Simplify right side
    92,979.12x = 6,484,490,416.96
  5. Step 5: Solve for x
    x = 6,484,490,416.96/92,979.12
  6. Step 6: Final answer
    x = 69,741.36

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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.