Home / 45,711.60-68,567.40-39,879.60

Finding the Fourth Proportional to 45,711.60, 68,567.40 and 39,879.60

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Solution

The fourth proportional to 45,711.60, 68,567.40 and 39,879.60 is: 59,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,711.60 : 68,567.40 = 39,879.60 : x
  2. Step 2: Convert to fraction form
    45,711.60/68,567.40 = 39,879.60/x
  3. Step 3: Cross multiply
    45,711.60x = 68,567.40 × 39,879.60
  4. Step 4: Simplify right side
    45,711.60x = 2,734,440,485.04
  5. Step 5: Solve for x
    x = 2,734,440,485.04/45,711.60
  6. Step 6: Final answer
    x = 59,819.40

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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.