Home / 99,289.12-137,020.37-53,967.08

Finding the Fourth Proportional to 99,289.12, 137,020.37 and 53,967.08

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Solution

The fourth proportional to 99,289.12, 137,020.37 and 53,967.08 is: 74,475.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,289.12 : 137,020.37 = 53,967.08 : x
  2. Step 2: Convert to fraction form
    99,289.12/137,020.37 = 53,967.08/x
  3. Step 3: Cross multiply
    99,289.12x = 137,020.37 × 53,967.08
  4. Step 4: Simplify right side
    99,289.12x = 7,394,589,269.42
  5. Step 5: Solve for x
    x = 7,394,589,269.42/99,289.12
  6. Step 6: Final answer
    x = 74,475.32

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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.