Home / 89,647.19-123,711.46-49,360.07

Finding the Fourth Proportional to 89,647.19, 123,711.46 and 49,360.07

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Solution

The fourth proportional to 89,647.19, 123,711.46 and 49,360.07 is: 68,115.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,647.19 : 123,711.46 = 49,360.07 : x
  2. Step 2: Convert to fraction form
    89,647.19/123,711.46 = 49,360.07/x
  3. Step 3: Cross multiply
    89,647.19x = 123,711.46 × 49,360.07
  4. Step 4: Simplify right side
    89,647.19x = 6,106,406,325.40
  5. Step 5: Solve for x
    x = 6,106,406,325.40/89,647.19
  6. Step 6: Final answer
    x = 68,115.98

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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.