Home / 55,340.40-76,376.30-31,470.66

Finding the Fourth Proportional to 55,340.40, 76,376.30 and 31,470.66

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Solution

The fourth proportional to 55,340.40, 76,376.30 and 31,470.66 is: 43,433.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,340.40 : 76,376.30 = 31,470.66 : x
  2. Step 2: Convert to fraction form
    55,340.40/76,376.30 = 31,470.66/x
  3. Step 3: Cross multiply
    55,340.40x = 76,376.30 × 31,470.66
  4. Step 4: Simplify right side
    55,340.40x = 2,403,612,569.36
  5. Step 5: Solve for x
    x = 2,403,612,569.36/55,340.40
  6. Step 6: Final answer
    x = 43,433.23

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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.