Home / 76,201.28-105,133.32-49,364.36

Finding the Fourth Proportional to 76,201.28, 105,133.32 and 49,364.36

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Solution

The fourth proportional to 76,201.28, 105,133.32 and 49,364.36 is: 68,106.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,201.28 : 105,133.32 = 49,364.36 : x
  2. Step 2: Convert to fraction form
    76,201.28/105,133.32 = 49,364.36/x
  3. Step 3: Cross multiply
    76,201.28x = 105,133.32 × 49,364.36
  4. Step 4: Simplify right side
    76,201.28x = 5,189,839,056.48
  5. Step 5: Solve for x
    x = 5,189,839,056.48/76,201.28
  6. Step 6: Final answer
    x = 68,106.98

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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.