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Finding the Fourth Proportional to 51,340.56, 70,866.72 and 30,119.28

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Solution

The fourth proportional to 51,340.56, 70,866.72 and 30,119.28 is: 41,574.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,340.56 : 70,866.72 = 30,119.28 : x
  2. Step 2: Convert to fraction form
    51,340.56/70,866.72 = 30,119.28/x
  3. Step 3: Cross multiply
    51,340.56x = 70,866.72 × 30,119.28
  4. Step 4: Simplify right side
    51,340.56x = 2,134,454,582.36
  5. Step 5: Solve for x
    x = 2,134,454,582.36/51,340.56
  6. Step 6: Final answer
    x = 41,574.43

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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.