Home / 89,770.20-123,877.50-49,485.66

Finding the Fourth Proportional to 89,770.20, 123,877.50 and 49,485.66

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Solution

The fourth proportional to 89,770.20, 123,877.50 and 49,485.66 is: 68,287.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,770.20 : 123,877.50 = 49,485.66 : x
  2. Step 2: Convert to fraction form
    89,770.20/123,877.50 = 49,485.66/x
  3. Step 3: Cross multiply
    89,770.20x = 123,877.50 × 49,485.66
  4. Step 4: Simplify right side
    89,770.20x = 6,130,159,846.65
  5. Step 5: Solve for x
    x = 6,130,159,846.65/89,770.20
  6. Step 6: Final answer
    x = 68,287.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.