Home / 99,365.08-137,124.75-54,043.42

Finding the Fourth Proportional to 99,365.08, 137,124.75 and 54,043.42

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Solution

The fourth proportional to 99,365.08, 137,124.75 and 54,043.42 is: 74,580.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,365.08 : 137,124.75 = 54,043.42 : x
  2. Step 2: Convert to fraction form
    99,365.08/137,124.75 = 54,043.42/x
  3. Step 3: Cross multiply
    99,365.08x = 137,124.75 × 54,043.42
  4. Step 4: Simplify right side
    99,365.08x = 7,410,690,456.65
  5. Step 5: Solve for x
    x = 7,410,690,456.65/99,365.08
  6. Step 6: Final answer
    x = 74,580.43

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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.