Home / 90,935.36-136,390.08-28,604.24

Finding the Fourth Proportional to 90,935.36, 136,390.08 and 28,604.24

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Solution

The fourth proportional to 90,935.36, 136,390.08 and 28,604.24 is: 42,902.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,935.36 : 136,390.08 = 28,604.24 : x
  2. Step 2: Convert to fraction form
    90,935.36/136,390.08 = 28,604.24/x
  3. Step 3: Cross multiply
    90,935.36x = 136,390.08 × 28,604.24
  4. Step 4: Simplify right side
    90,935.36x = 3,901,334,581.94
  5. Step 5: Solve for x
    x = 3,901,334,581.94/90,935.36
  6. Step 6: Final answer
    x = 42,902.28

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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.