Home / 92,837.60-128,115-50,396.07

Finding the Fourth Proportional to 92,837.60, 128,115 and 50,396.07

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Solution

The fourth proportional to 92,837.60, 128,115 and 50,396.07 is: 69,546.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,837.60 : 128,115 = 50,396.07 : x
  2. Step 2: Convert to fraction form
    92,837.60/128,115 = 50,396.07/x
  3. Step 3: Cross multiply
    92,837.60x = 128,115 × 50,396.07
  4. Step 4: Simplify right side
    92,837.60x = 6,456,492,508.05
  5. Step 5: Solve for x
    x = 6,456,492,508.05/92,837.60
  6. Step 6: Final answer
    x = 69,546.10

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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.