Home / 86,206.70-119,040-63,584.90

Finding the Fourth Proportional to 86,206.70, 119,040 and 63,584.90

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Solution

The fourth proportional to 86,206.70, 119,040 and 63,584.90 is: 87,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,206.70 : 119,040 = 63,584.90 : x
  2. Step 2: Convert to fraction form
    86,206.70/119,040 = 63,584.90/x
  3. Step 3: Cross multiply
    86,206.70x = 119,040 × 63,584.90
  4. Step 4: Simplify right side
    86,206.70x = 7,569,146,496
  5. Step 5: Solve for x
    x = 7,569,146,496/86,206.70
  6. Step 6: Final answer
    x = 87,802.30

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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.