Home / 90,935.16-136,254.42-55,800.60

Finding the Fourth Proportional to 90,935.16, 136,254.42 and 55,800.60

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Solution

The fourth proportional to 90,935.16, 136,254.42 and 55,800.60 is: 83,609.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,935.16 : 136,254.42 = 55,800.60 : x
  2. Step 2: Convert to fraction form
    90,935.16/136,254.42 = 55,800.60/x
  3. Step 3: Cross multiply
    90,935.16x = 136,254.42 × 55,800.60
  4. Step 4: Simplify right side
    90,935.16x = 7,603,078,388.65
  5. Step 5: Solve for x
    x = 7,603,078,388.65/90,935.16
  6. Step 6: Final answer
    x = 83,609.89

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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.