Home / 92,884.40-128,191.41-55,158.65

Finding the Fourth Proportional to 92,884.40, 128,191.41 and 55,158.65

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Solution

The fourth proportional to 92,884.40, 128,191.41 and 55,158.65 is: 76,125.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,884.40 : 128,191.41 = 55,158.65 : x
  2. Step 2: Convert to fraction form
    92,884.40/128,191.41 = 55,158.65/x
  3. Step 3: Cross multiply
    92,884.40x = 128,191.41 × 55,158.65
  4. Step 4: Simplify right side
    92,884.40x = 7,070,864,476.24
  5. Step 5: Solve for x
    x = 7,070,864,476.24/92,884.40
  6. Step 6: Final answer
    x = 76,125.43

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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.