Home / 86,872.28-119,871-48,629.84

Finding the Fourth Proportional to 86,872.28, 119,871 and 48,629.84

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Solution

The fourth proportional to 86,872.28, 119,871 and 48,629.84 is: 67,102.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,872.28 : 119,871 = 48,629.84 : x
  2. Step 2: Convert to fraction form
    86,872.28/119,871 = 48,629.84/x
  3. Step 3: Cross multiply
    86,872.28x = 119,871 × 48,629.84
  4. Step 4: Simplify right side
    86,872.28x = 5,829,307,550.64
  5. Step 5: Solve for x
    x = 5,829,307,550.64/86,872.28
  6. Step 6: Final answer
    x = 67,102.04

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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.