Home / 51,901.40-71,622.96-31,756.70

Finding the Fourth Proportional to 51,901.40, 71,622.96 and 31,756.70

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Solution

The fourth proportional to 51,901.40, 71,622.96 and 31,756.70 is: 43,823.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,901.40 : 71,622.96 = 31,756.70 : x
  2. Step 2: Convert to fraction form
    51,901.40/71,622.96 = 31,756.70/x
  3. Step 3: Cross multiply
    51,901.40x = 71,622.96 × 31,756.70
  4. Step 4: Simplify right side
    51,901.40x = 2,274,508,853.83
  5. Step 5: Solve for x
    x = 2,274,508,853.83/51,901.40
  6. Step 6: Final answer
    x = 43,823.65

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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.