Home / 55,962.83-83,935.91-20,415.78

Finding the Fourth Proportional to 55,962.83, 83,935.91 and 20,415.78

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Solution

The fourth proportional to 55,962.83, 83,935.91 and 20,415.78 is: 30,620.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,962.83 : 83,935.91 = 20,415.78 : x
  2. Step 2: Convert to fraction form
    55,962.83/83,935.91 = 20,415.78/x
  3. Step 3: Cross multiply
    55,962.83x = 83,935.91 × 20,415.78
  4. Step 4: Simplify right side
    55,962.83x = 1,713,617,123.70
  5. Step 5: Solve for x
    x = 1,713,617,123.70/55,962.83
  6. Step 6: Final answer
    x = 30,620.63

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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.