Home / 49,430.40-74,145.60-49,123.20

Finding the Fourth Proportional to 49,430.40, 74,145.60 and 49,123.20

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Solution

The fourth proportional to 49,430.40, 74,145.60 and 49,123.20 is: 73,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,430.40 : 74,145.60 = 49,123.20 : x
  2. Step 2: Convert to fraction form
    49,430.40/74,145.60 = 49,123.20/x
  3. Step 3: Cross multiply
    49,430.40x = 74,145.60 × 49,123.20
  4. Step 4: Simplify right side
    49,430.40x = 3,642,269,137.92
  5. Step 5: Solve for x
    x = 3,642,269,137.92/49,430.40
  6. Step 6: Final answer
    x = 73,684.80

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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.