Home / 99,835.40-137,772.15-54,513.36

Finding the Fourth Proportional to 99,835.40, 137,772.15 and 54,513.36

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Solution

The fourth proportional to 99,835.40, 137,772.15 and 54,513.36 is: 75,228.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,835.40 : 137,772.15 = 54,513.36 : x
  2. Step 2: Convert to fraction form
    99,835.40/137,772.15 = 54,513.36/x
  3. Step 3: Cross multiply
    99,835.40x = 137,772.15 × 54,513.36
  4. Step 4: Simplify right side
    99,835.40x = 7,510,422,810.92
  5. Step 5: Solve for x
    x = 7,510,422,810.92/99,835.40
  6. Step 6: Final answer
    x = 75,228.06

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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.