Home / 86,933.70-130,400.55-47,469.29

Finding the Fourth Proportional to 86,933.70, 130,400.55 and 47,469.29

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Solution

The fourth proportional to 86,933.70, 130,400.55 and 47,469.29 is: 71,203.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,933.70 : 130,400.55 = 47,469.29 : x
  2. Step 2: Convert to fraction form
    86,933.70/130,400.55 = 47,469.29/x
  3. Step 3: Cross multiply
    86,933.70x = 130,400.55 × 47,469.29
  4. Step 4: Simplify right side
    86,933.70x = 6,190,020,872.11
  5. Step 5: Solve for x
    x = 6,190,020,872.11/86,933.70
  6. Step 6: Final answer
    x = 71,203.93

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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.