Home / 51,426.56-70,966.40-30,208

Finding the Fourth Proportional to 51,426.56, 70,966.40 and 30,208

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Solution

The fourth proportional to 51,426.56, 70,966.40 and 30,208 is: 41,685.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,426.56 : 70,966.40 = 30,208 : x
  2. Step 2: Convert to fraction form
    51,426.56/70,966.40 = 30,208/x
  3. Step 3: Cross multiply
    51,426.56x = 70,966.40 × 30,208
  4. Step 4: Simplify right side
    51,426.56x = 2,143,753,011.20
  5. Step 5: Solve for x
    x = 2,143,753,011.20/51,426.56
  6. Step 6: Final answer
    x = 41,685.72

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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.