Home / 55,391.04-76,441.32-31,521.15

Finding the Fourth Proportional to 55,391.04, 76,441.32 and 31,521.15

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Solution

The fourth proportional to 55,391.04, 76,441.32 and 31,521.15 is: 43,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,391.04 : 76,441.32 = 31,521.15 : x
  2. Step 2: Convert to fraction form
    55,391.04/76,441.32 = 31,521.15/x
  3. Step 3: Cross multiply
    55,391.04x = 76,441.32 × 31,521.15
  4. Step 4: Simplify right side
    55,391.04x = 2,409,518,313.92
  5. Step 5: Solve for x
    x = 2,409,518,313.92/55,391.04
  6. Step 6: Final answer
    x = 43,500.15

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