Home / 86,438.88-119,296.80-48,725.28

Finding the Fourth Proportional to 86,438.88, 119,296.80 and 48,725.28

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Solution

The fourth proportional to 86,438.88, 119,296.80 and 48,725.28 is: 67,247.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,438.88 : 119,296.80 = 48,725.28 : x
  2. Step 2: Convert to fraction form
    86,438.88/119,296.80 = 48,725.28/x
  3. Step 3: Cross multiply
    86,438.88x = 119,296.80 × 48,725.28
  4. Step 4: Simplify right side
    86,438.88x = 5,812,769,983.10
  5. Step 5: Solve for x
    x = 5,812,769,983.10/86,438.88
  6. Step 6: Final answer
    x = 67,247.17

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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.