Home / 39,904.40-59,905.20-39,612.80

Finding the Fourth Proportional to 39,904.40, 59,905.20 and 39,612.80

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Solution

The fourth proportional to 39,904.40, 59,905.20 and 39,612.80 is: 59,467.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,904.40 : 59,905.20 = 39,612.80 : x
  2. Step 2: Convert to fraction form
    39,904.40/59,905.20 = 39,612.80/x
  3. Step 3: Cross multiply
    39,904.40x = 59,905.20 × 39,612.80
  4. Step 4: Simplify right side
    39,904.40x = 2,373,012,706.56
  5. Step 5: Solve for x
    x = 2,373,012,706.56/39,904.40
  6. Step 6: Final answer
    x = 59,467.44

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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.