Home / 91,146.20-136,622.10-34,964.60

Finding the Fourth Proportional to 91,146.20, 136,622.10 and 34,964.60

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Solution

The fourth proportional to 91,146.20, 136,622.10 and 34,964.60 is: 52,409.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,146.20 : 136,622.10 = 34,964.60 : x
  2. Step 2: Convert to fraction form
    91,146.20/136,622.10 = 34,964.60/x
  3. Step 3: Cross multiply
    91,146.20x = 136,622.10 × 34,964.60
  4. Step 4: Simplify right side
    91,146.20x = 4,776,937,077.66
  5. Step 5: Solve for x
    x = 4,776,937,077.66/91,146.20
  6. Step 6: Final answer
    x = 52,409.61

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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.