Home / 99,375.96-137,141.40-54,056.52

Finding the Fourth Proportional to 99,375.96, 137,141.40 and 54,056.52

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Solution

The fourth proportional to 99,375.96, 137,141.40 and 54,056.52 is: 74,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,375.96 : 137,141.40 = 54,056.52 : x
  2. Step 2: Convert to fraction form
    99,375.96/137,141.40 = 54,056.52/x
  3. Step 3: Cross multiply
    99,375.96x = 137,141.40 × 54,056.52
  4. Step 4: Simplify right side
    99,375.96x = 7,413,386,831.93
  5. Step 5: Solve for x
    x = 7,413,386,831.93/99,375.96
  6. Step 6: Final answer
    x = 74,599.40

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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.