Home / 99,842.27-137,783.01-54,520.58

Finding the Fourth Proportional to 99,842.27, 137,783.01 and 54,520.58

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Solution

The fourth proportional to 99,842.27, 137,783.01 and 54,520.58 is: 75,238.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,842.27 : 137,783.01 = 54,520.58 : x
  2. Step 2: Convert to fraction form
    99,842.27/137,783.01 = 54,520.58/x
  3. Step 3: Cross multiply
    99,842.27x = 137,783.01 × 54,520.58
  4. Step 4: Simplify right side
    99,842.27x = 7,512,009,619.35
  5. Step 5: Solve for x
    x = 7,512,009,619.35/99,842.27
  6. Step 6: Final answer
    x = 75,238.77

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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.