Home / 86,065.38-118,674.33-55,810.98

Finding the Fourth Proportional to 86,065.38, 118,674.33 and 55,810.98

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Solution

The fourth proportional to 86,065.38, 118,674.33 and 55,810.98 is: 76,956.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,065.38 : 118,674.33 = 55,810.98 : x
  2. Step 2: Convert to fraction form
    86,065.38/118,674.33 = 55,810.98/x
  3. Step 3: Cross multiply
    86,065.38x = 118,674.33 × 55,810.98
  4. Step 4: Simplify right side
    86,065.38x = 6,623,330,658.14
  5. Step 5: Solve for x
    x = 6,623,330,658.14/86,065.38
  6. Step 6: Final answer
    x = 76,956.97

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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.