Home / 81,433.32-121,969.53-62,574.54

Finding the Fourth Proportional to 81,433.32, 121,969.53 and 62,574.54

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Solution

The fourth proportional to 81,433.32, 121,969.53 and 62,574.54 is: 93,723.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,433.32 : 121,969.53 = 62,574.54 : x
  2. Step 2: Convert to fraction form
    81,433.32/121,969.53 = 62,574.54/x
  3. Step 3: Cross multiply
    81,433.32x = 121,969.53 × 62,574.54
  4. Step 4: Simplify right side
    81,433.32x = 7,632,187,233.77
  5. Step 5: Solve for x
    x = 7,632,187,233.77/81,433.32
  6. Step 6: Final answer
    x = 93,723.15

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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.