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Finding the Fourth Proportional to 99,572.73, 137,409.61 and 54,250.58

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Solution

The fourth proportional to 99,572.73, 137,409.61 and 54,250.58 is: 74,865.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,572.73 : 137,409.61 = 54,250.58 : x
  2. Step 2: Convert to fraction form
    99,572.73/137,409.61 = 54,250.58/x
  3. Step 3: Cross multiply
    99,572.73x = 137,409.61 × 54,250.58
  4. Step 4: Simplify right side
    99,572.73x = 7,454,551,040.07
  5. Step 5: Solve for x
    x = 7,454,551,040.07/99,572.73
  6. Step 6: Final answer
    x = 74,865.39

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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.