Home / 92,765.12-128,016.11-50,323.65

Finding the Fourth Proportional to 92,765.12, 128,016.11 and 50,323.65

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Solution

The fourth proportional to 92,765.12, 128,016.11 and 50,323.65 is: 69,446.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,765.12 : 128,016.11 = 50,323.65 : x
  2. Step 2: Convert to fraction form
    92,765.12/128,016.11 = 50,323.65/x
  3. Step 3: Cross multiply
    92,765.12x = 128,016.11 × 50,323.65
  4. Step 4: Simplify right side
    92,765.12x = 6,442,238,639.89
  5. Step 5: Solve for x
    x = 6,442,238,639.89/92,765.12
  6. Step 6: Final answer
    x = 69,446.77

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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.