Home / 86,932.70-130,399.05-47,468.28

Finding the Fourth Proportional to 86,932.70, 130,399.05 and 47,468.28

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Solution

The fourth proportional to 86,932.70, 130,399.05 and 47,468.28 is: 71,202.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,932.70 : 130,399.05 = 47,468.28 : x
  2. Step 2: Convert to fraction form
    86,932.70/130,399.05 = 47,468.28/x
  3. Step 3: Cross multiply
    86,932.70x = 130,399.05 × 47,468.28
  4. Step 4: Simplify right side
    86,932.70x = 6,189,819,017.13
  5. Step 5: Solve for x
    x = 6,189,819,017.13/86,932.70
  6. Step 6: Final answer
    x = 71,202.43

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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.