Home / 92,837.68-128,149.28-55,111.96

Finding the Fourth Proportional to 92,837.68, 128,149.28 and 55,111.96

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Solution

The fourth proportional to 92,837.68, 128,149.28 and 55,111.96 is: 76,074.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,837.68 : 128,149.28 = 55,111.96 : x
  2. Step 2: Convert to fraction form
    92,837.68/128,149.28 = 55,111.96/x
  3. Step 3: Cross multiply
    92,837.68x = 128,149.28 × 55,111.96
  4. Step 4: Simplify right side
    92,837.68x = 7,062,557,993.39
  5. Step 5: Solve for x
    x = 7,062,557,993.39/92,837.68
  6. Step 6: Final answer
    x = 76,074.26

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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.