Home / 51,412.29-70,949.91-31,270.02

Finding the Fourth Proportional to 51,412.29, 70,949.91 and 31,270.02

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Solution

The fourth proportional to 51,412.29, 70,949.91 and 31,270.02 is: 43,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,412.29 : 70,949.91 = 31,270.02 : x
  2. Step 2: Convert to fraction form
    51,412.29/70,949.91 = 31,270.02/x
  3. Step 3: Cross multiply
    51,412.29x = 70,949.91 × 31,270.02
  4. Step 4: Simplify right side
    51,412.29x = 2,218,605,104.70
  5. Step 5: Solve for x
    x = 2,218,605,104.70/51,412.29
  6. Step 6: Final answer
    x = 43,153.21

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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.