Home / 99,693.32-137,576.21-54,370.44

Finding the Fourth Proportional to 99,693.32, 137,576.21 and 54,370.44

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Solution

The fourth proportional to 99,693.32, 137,576.21 and 54,370.44 is: 75,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,693.32 : 137,576.21 = 54,370.44 : x
  2. Step 2: Convert to fraction form
    99,693.32/137,576.21 = 54,370.44/x
  3. Step 3: Cross multiply
    99,693.32x = 137,576.21 × 54,370.44
  4. Step 4: Simplify right side
    99,693.32x = 7,480,078,799.38
  5. Step 5: Solve for x
    x = 7,480,078,799.38/99,693.32
  6. Step 6: Final answer
    x = 75,030.90

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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.