Home / 40,698.40-61,047.60-40,439.20

Finding the Fourth Proportional to 40,698.40, 61,047.60 and 40,439.20

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Solution

The fourth proportional to 40,698.40, 61,047.60 and 40,439.20 is: 60,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,698.40 : 61,047.60 = 40,439.20 : x
  2. Step 2: Convert to fraction form
    40,698.40/61,047.60 = 40,439.20/x
  3. Step 3: Cross multiply
    40,698.40x = 61,047.60 × 40,439.20
  4. Step 4: Simplify right side
    40,698.40x = 2,468,716,105.92
  5. Step 5: Solve for x
    x = 2,468,716,105.92/40,698.40
  6. Step 6: Final answer
    x = 60,658.80

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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.