Home / 99,268.50-136,990.53-54,557.46

Finding the Fourth Proportional to 99,268.50, 136,990.53 and 54,557.46

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Solution

The fourth proportional to 99,268.50, 136,990.53 and 54,557.46 is: 75,289.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,268.50 : 136,990.53 = 54,557.46 : x
  2. Step 2: Convert to fraction form
    99,268.50/136,990.53 = 54,557.46/x
  3. Step 3: Cross multiply
    99,268.50x = 136,990.53 × 54,557.46
  4. Step 4: Simplify right side
    99,268.50x = 7,473,855,360.85
  5. Step 5: Solve for x
    x = 7,473,855,360.85/99,268.50
  6. Step 6: Final answer
    x = 75,289.29

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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.