Home / 86,914.70-130,346.94-39,503.38

Finding the Fourth Proportional to 86,914.70, 130,346.94 and 39,503.38

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Solution

The fourth proportional to 86,914.70, 130,346.94 and 39,503.38 is: 59,243.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,914.70 : 130,346.94 = 39,503.38 : x
  2. Step 2: Convert to fraction form
    86,914.70/130,346.94 = 39,503.38/x
  3. Step 3: Cross multiply
    86,914.70x = 130,346.94 × 39,503.38
  4. Step 4: Simplify right side
    86,914.70x = 5,149,144,702.66
  5. Step 5: Solve for x
    x = 5,149,144,702.66/86,914.70
  6. Step 6: Final answer
    x = 59,243.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.