Home / 76,338.64-105,236.58-53,608.42

Finding the Fourth Proportional to 76,338.64, 105,236.58 and 53,608.42

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Solution

The fourth proportional to 76,338.64, 105,236.58 and 53,608.42 is: 73,901.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,338.64 : 105,236.58 = 53,608.42 : x
  2. Step 2: Convert to fraction form
    76,338.64/105,236.58 = 53,608.42/x
  3. Step 3: Cross multiply
    76,338.64x = 105,236.58 × 53,608.42
  4. Step 4: Simplify right side
    76,338.64x = 5,641,566,780.00
  5. Step 5: Solve for x
    x = 5,641,566,780.00/76,338.64
  6. Step 6: Final answer
    x = 73,901.85

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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.