Home / 55,442.40-83,163.60-49,318.80

Finding the Fourth Proportional to 55,442.40, 83,163.60 and 49,318.80

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Solution

The fourth proportional to 55,442.40, 83,163.60 and 49,318.80 is: 73,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,442.40 : 83,163.60 = 49,318.80 : x
  2. Step 2: Convert to fraction form
    55,442.40/83,163.60 = 49,318.80/x
  3. Step 3: Cross multiply
    55,442.40x = 83,163.60 × 49,318.80
  4. Step 4: Simplify right side
    55,442.40x = 4,101,528,955.68
  5. Step 5: Solve for x
    x = 4,101,528,955.68/55,442.40
  6. Step 6: Final answer
    x = 73,978.20

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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.