Home / 92,050.50-138,077.43-28,869.21

Finding the Fourth Proportional to 92,050.50, 138,077.43 and 28,869.21

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Solution

The fourth proportional to 92,050.50, 138,077.43 and 28,869.21 is: 43,304.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,050.50 : 138,077.43 = 28,869.21 : x
  2. Step 2: Convert to fraction form
    92,050.50/138,077.43 = 28,869.21/x
  3. Step 3: Cross multiply
    92,050.50x = 138,077.43 × 28,869.21
  4. Step 4: Simplify right side
    92,050.50x = 3,986,186,322.93
  5. Step 5: Solve for x
    x = 3,986,186,322.93/92,050.50
  6. Step 6: Final answer
    x = 43,304.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.