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Finding the Fourth Proportional to 51,253.76, 70,724.80 and 30,029.06

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Solution

The fourth proportional to 51,253.76, 70,724.80 and 30,029.06 is: 41,436.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,253.76 : 70,724.80 = 30,029.06 : x
  2. Step 2: Convert to fraction form
    51,253.76/70,724.80 = 30,029.06/x
  3. Step 3: Cross multiply
    51,253.76x = 70,724.80 × 30,029.06
  4. Step 4: Simplify right side
    51,253.76x = 2,123,799,262.69
  5. Step 5: Solve for x
    x = 2,123,799,262.69/51,253.76
  6. Step 6: Final answer
    x = 41,436.95

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1.5x scale

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.