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Finding the Fourth Proportional to 99,572.86, 137,409.28 and 54,252.73

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Solution

The fourth proportional to 99,572.86, 137,409.28 and 54,252.73 is: 74,868.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,572.86 : 137,409.28 = 54,252.73 : x
  2. Step 2: Convert to fraction form
    99,572.86/137,409.28 = 54,252.73/x
  3. Step 3: Cross multiply
    99,572.86x = 137,409.28 × 54,252.73
  4. Step 4: Simplify right side
    99,572.86x = 7,454,828,567.33
  5. Step 5: Solve for x
    x = 7,454,828,567.33/99,572.86
  6. Step 6: Final answer
    x = 74,868.08

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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.