Home / 86,433.18-119,277.81-48,708.78

Finding the Fourth Proportional to 86,433.18, 119,277.81 and 48,708.78

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Solution

The fourth proportional to 86,433.18, 119,277.81 and 48,708.78 is: 67,218.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,433.18 : 119,277.81 = 48,708.78 : x
  2. Step 2: Convert to fraction form
    86,433.18/119,277.81 = 48,708.78/x
  3. Step 3: Cross multiply
    86,433.18x = 119,277.81 × 48,708.78
  4. Step 4: Simplify right side
    86,433.18x = 5,809,876,606.17
  5. Step 5: Solve for x
    x = 5,809,876,606.17/86,433.18
  6. Step 6: Final answer
    x = 67,218.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.