Home / 55,320.40-82,965.72-20,260.24

Finding the Fourth Proportional to 55,320.40, 82,965.72 and 20,260.24

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Solution

The fourth proportional to 55,320.40, 82,965.72 and 20,260.24 is: 30,384.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,320.40 : 82,965.72 = 20,260.24 : x
  2. Step 2: Convert to fraction form
    55,320.40/82,965.72 = 20,260.24/x
  3. Step 3: Cross multiply
    55,320.40x = 82,965.72 × 20,260.24
  4. Step 4: Simplify right side
    55,320.40x = 1,680,905,398.97
  5. Step 5: Solve for x
    x = 1,680,905,398.97/55,320.40
  6. Step 6: Final answer
    x = 30,384.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.