Home / 51,081.20-70,478.28-29,865.68

Finding the Fourth Proportional to 51,081.20, 70,478.28 and 29,865.68

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Solution

The fourth proportional to 51,081.20, 70,478.28 and 29,865.68 is: 41,206.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,081.20 : 70,478.28 = 29,865.68 : x
  2. Step 2: Convert to fraction form
    51,081.20/70,478.28 = 29,865.68/x
  3. Step 3: Cross multiply
    51,081.20x = 70,478.28 × 29,865.68
  4. Step 4: Simplify right side
    51,081.20x = 2,104,881,757.43
  5. Step 5: Solve for x
    x = 2,104,881,757.43/51,081.20
  6. Step 6: Final answer
    x = 41,206.58

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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.