Home / 86,788.40-130,188.36-33,505.79

Finding the Fourth Proportional to 86,788.40, 130,188.36 and 33,505.79

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Solution

The fourth proportional to 86,788.40, 130,188.36 and 33,505.79 is: 50,260.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,788.40 : 130,188.36 = 33,505.79 : x
  2. Step 2: Convert to fraction form
    86,788.40/130,188.36 = 33,505.79/x
  3. Step 3: Cross multiply
    86,788.40x = 130,188.36 × 33,505.79
  4. Step 4: Simplify right side
    86,788.40x = 4,362,063,325.31
  5. Step 5: Solve for x
    x = 4,362,063,325.31/86,788.40
  6. Step 6: Final answer
    x = 50,260.91

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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.