Home / 76,339.64-105,237.96-53,609.42

Finding the Fourth Proportional to 76,339.64, 105,237.96 and 53,609.42

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Solution

The fourth proportional to 76,339.64, 105,237.96 and 53,609.42 is: 73,903.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,339.64 : 105,237.96 = 53,609.42 : x
  2. Step 2: Convert to fraction form
    76,339.64/105,237.96 = 53,609.42/x
  3. Step 3: Cross multiply
    76,339.64x = 105,237.96 × 53,609.42
  4. Step 4: Simplify right side
    76,339.64x = 5,641,745,997.58
  5. Step 5: Solve for x
    x = 5,641,745,997.58/76,339.64
  6. Step 6: Final answer
    x = 73,903.23

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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.