Home / 51,304.14-70,780.23-31,153.38

Finding the Fourth Proportional to 51,304.14, 70,780.23 and 31,153.38

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Solution

The fourth proportional to 51,304.14, 70,780.23 and 31,153.38 is: 42,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,304.14 : 70,780.23 = 31,153.38 : x
  2. Step 2: Convert to fraction form
    51,304.14/70,780.23 = 31,153.38/x
  3. Step 3: Cross multiply
    51,304.14x = 70,780.23 × 31,153.38
  4. Step 4: Simplify right side
    51,304.14x = 2,205,043,401.68
  5. Step 5: Solve for x
    x = 2,205,043,401.68/51,304.14
  6. Step 6: Final answer
    x = 42,979.83

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1.5x scale

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.