Home / 92,812.39-128,081.18-50,370.91

Finding the Fourth Proportional to 92,812.39, 128,081.18 and 50,370.91

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Solution

The fourth proportional to 92,812.39, 128,081.18 and 50,370.91 is: 69,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,812.39 : 128,081.18 = 50,370.91 : x
  2. Step 2: Convert to fraction form
    92,812.39/128,081.18 = 50,370.91/x
  3. Step 3: Cross multiply
    92,812.39x = 128,081.18 × 50,370.91
  4. Step 4: Simplify right side
    92,812.39x = 6,451,565,590.47
  5. Step 5: Solve for x
    x = 6,451,565,590.47/92,812.39
  6. Step 6: Final answer
    x = 69,511.90

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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.