Home / 86,836.50-130,266.63-30,663.54

Finding the Fourth Proportional to 86,836.50, 130,266.63 and 30,663.54

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Solution

The fourth proportional to 86,836.50, 130,266.63 and 30,663.54 is: 45,999.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,836.50 : 130,266.63 = 30,663.54 : x
  2. Step 2: Convert to fraction form
    86,836.50/130,266.63 = 30,663.54/x
  3. Step 3: Cross multiply
    86,836.50x = 130,266.63 × 30,663.54
  4. Step 4: Simplify right side
    86,836.50x = 3,994,436,019.67
  5. Step 5: Solve for x
    x = 3,994,436,019.67/86,836.50
  6. Step 6: Final answer
    x = 45,999.51

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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.