Home / 51,312.49-70,812.63-31,164.75

Finding the Fourth Proportional to 51,312.49, 70,812.63 and 31,164.75

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Solution

The fourth proportional to 51,312.49, 70,812.63 and 31,164.75 is: 43,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,312.49 : 70,812.63 = 31,164.75 : x
  2. Step 2: Convert to fraction form
    51,312.49/70,812.63 = 31,164.75/x
  3. Step 3: Cross multiply
    51,312.49x = 70,812.63 × 31,164.75
  4. Step 4: Simplify right side
    51,312.49x = 2,206,857,910.79
  5. Step 5: Solve for x
    x = 2,206,857,910.79/51,312.49
  6. Step 6: Final answer
    x = 43,008.20

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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.