Home / 92,979.11-128,311.35-50,537.54

Finding the Fourth Proportional to 92,979.11, 128,311.35 and 50,537.54

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Solution

The fourth proportional to 92,979.11, 128,311.35 and 50,537.54 is: 69,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,979.11 : 128,311.35 = 50,537.54 : x
  2. Step 2: Convert to fraction form
    92,979.11/128,311.35 = 50,537.54/x
  3. Step 3: Cross multiply
    92,979.11x = 128,311.35 × 50,537.54
  4. Step 4: Simplify right side
    92,979.11x = 6,484,539,983.08
  5. Step 5: Solve for x
    x = 6,484,539,983.08/92,979.11
  6. Step 6: Final answer
    x = 69,741.90

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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.